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Seminario Dip. Scienze Statistiche, Sapienza - M. Mazza - 18-4-2024
by Luisa Beghin 14 Apr '24

14 Apr '24

Buongiorno, *giovedì 18 Aprile alle ore 15:00,* nell'*aula 24 del Dipartimento di Scienze Statistiche, Sapienza* (ed. CU002, quarto piano) e online al link https://uniroma1.zoom.us/j/83831966596?pwd=U1pEclcrZzlFMXppcmVaL1FOaFUydz09 si terrà il seguente seminario: *Speaker: Mariarosa Mazza (Università di Roma, Tor Vergata)* *Titolo: Fractional derivatives and models: some numerical aspects* *Abstract:* Fractional derivatives are a well-established mathematical tool that has received much attention in recent decades due to their non-local behavior, proven to be useful in modeling anomalous diffusion present in various real-world phenomena. Examples include the generation and spread of electrical signals across biological excitable tissues, interactions between particles and fields within a plasma, and network dynamics in human environments. The improvement in describing these phenomena, however, results in a more challenging numerical treatment, requiring specialized strategies, e.g., in terms of discretization methods or numerical solvers. The aim of this talk is to give a little taste of the topic with a focus on the numerical linear algebra difficulties that it poses. Grazie per l'attenzione, cordiali saluti. Luisa Beghin *************************************************************** Luisa Beghin Dipartimento di Scienze Statistiche Fac. Ingegneria dell'Informazione, Informatica e Statistica "SAPIENZA" Università di Roma Piazzale Aldo Moro 5, 00185 Roma T (+39) 06 49910543 F (+39) 06 4959241 https://sites.google.com/site/luisabeghin/ *****************************************************************

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Seminars TÖLLE and TOLOTTI
by Stefano Pagliarani 12 Apr '24

12 Apr '24

Dear all, On April 17th, in the classroom Aula Arzelà, Department of Mathematics of the University of Bologna, the following seminars will take place: * 11:00-12:00: Marco TOLOTTI "POLARIZATION AND COHERENCE IN MEAN FIELD GAMES DRIVEN BY PRIVATE AND SOCIAL UTILITY" * 12:00-13:00: Jonas TÖLLE "STOCHASTIC PRESSURE EQUATION IN ENHANCED GEOTHERMAL HEATING" as part of the cycle Stochastics and Applications. The abstracts are available at https://www.dm.unibo.it/seminari/mat/serials/36 For any question, please contact the organizers: Lorenzo Cerboni Baiardi and Stefano Pagliarani. Best regards, ------------------------------------------------------------------------------------------------------------------------ Stefano Pagliarani, Associate Professor Piazza di Porta S. Donato, 5 University of Bologna (Alma Mater) 40126 Bologna (BO), Italy Department of Mathematics Cell. Phone +39 366 5013755 Email: stepagliara1(a)gmail.com<mailto:stepagliara1@gmail.com>, <mailto:stefano.pagliarani9@unibo.it> stefano.pagliarani9(a)unibo.it<mailto:stefano.pagliarani9@unibo.it> Zoom: https://unibo.zoom.us/j/3755841669 -----------------------------------------------------------------------------------------------------------------------

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ISBA 2024 World Meeting - Early-bird registration until April 15th
by Roberto CASARIN 12 Apr '24

12 Apr '24

Dear Colleagues, We kindly remind you that the ISBA 2024 World Meeting is approaching. The *early-bird registration fee will remain available until April 15th*. More detailed information is available at: https://www.unive.it/isba2024 ISBA2024 is organized by the International Society for Bayesian Analysis ( ISBA <https://u8042292.ct.sendgrid.net/ls/click?upn=u001.VwavI53V6vcw3NkZZaT5c3BC…>) in collaboration with the Venice Centre in Economic and Risk Analytics (VERA <https://u8042292.ct.sendgrid.net/ls/click?upn=u001.VwavI53V6vcw3NkZZaT5c3BC…>) at Ca’ Foscari University of Venice. Looking forward to meeting you in Venice! Best regards, The ISBA World 2024, Local Organizing Committee. ------------------------------ 31st World Meeting ISBA 2024July 1st - July 7th, 2024Ca’ Foscari University, San Giobbe Campus, Venice, Italy The ISBA world meetings bring together the international statistical community of researchers and professionals who develop Bayesian methods and apply them to challenging problems in different fields, ranging from economics and finance to business, industry, biostatistics, pharmaceutical statistics, environmental statistics, etc. *Supported by*: Ca' Foscari University of Venice, Department of Economics, Venice Centre in Economic and Risk Analytics (VERA), Fondazione Università Ca' Foscari. *Under the auspices of:* Ministero dell'Università e della Ricerca (MUR), Regione del Veneto, Città Metropolitana di Venezia, Città di Venezia, Istituto Veneto di Scienze, Lettere ed Arti, Società Italiana di Econometria (SIdE), Società Italiana di Matematica Applicata e Industriale (SIMAI), Società Italiana di Statistica (SIS), Gruppo Nazionale per l'Analisi Matematica la Probabilità e le loro Applicazioni (INDAM-GNAMPA). *Main Sponsors*: Eurizon Asset Management, Generali, University of Michigan School of Public Health (Dept. of Biostatistics), United States National Sciences Foundation, University of California Los Angeles (Dept. of Biostatistics). *Other Sponsors:* Collegio Carlo Alberto (de Castro Statistics Initiative), University of Texas at Austin (Dept. of Statistics and Data Sciences), Duke University (Dept. of Statistical Science), G-Research, SAS, STATA, Università Bocconi (Dept. of Decision Sciences), European Datawarehouse, Pfizer, Posit, Brown University School of Public Health, INDAM-GNAMPA, CRC press, Springer Verlag. *Scientific Committee**:* Sinead Williamson <https://u8042292.ct.sendgrid.net/ls/click?upn=u001.VwavI53V6vcw3NkZZaT5c3BC…> (Chair), University of Texas at Austin/Apple Sergios Agapiou <https://u8042292.ct.sendgrid.net/ls/click?upn=u001.VwavI53V6vcw3NkZZaT5c3BC…>, University of Cyprus Trevor Campbell <https://u8042292.ct.sendgrid.net/ls/click?upn=u001.VwavI53V6vcw3NkZZaT5c3BC…>, University of British Columbia Roberto Casarin <https://u8042292.ct.sendgrid.net/ls/click?upn=u001.VwavI53V6vcw3NkZZaT5c3BC…>, Ca’ Foscari University of Venice Luis Mauricio Castro Cepero <https://u8042292.ct.sendgrid.net/ls/click?upn=u001.VwavI53V6vcw3NkZZaT5c3BC…>, Pontificia Universidad Católica de Chile Christopher Drovandi <https://u8042292.ct.sendgrid.net/ls/click?upn=u001.VwavI53V6vcw3NkZZaT5c3BC…>, Queensland University of Technology Daniele Durante <https://u8042292.ct.sendgrid.net/ls/click?upn=u001.VwavI53V6vcw3NkZZaT5c3BC…>, Bocconi University Hedibert Freitas Lopes <https://u8042292.ct.sendgrid.net/ls/click?upn=u001.VwavI53V6vcw3NkZZaT5c3BC…>, Institute of Educatio and Research Emtiyaz Khan <https://u8042292.ct.sendgrid.net/ls/click?upn=u001.VwavI53V6vcw3NkZZaT5c3BC…>, RIKEN Center Matthias Katzfuss <https://u8042292.ct.sendgrid.net/ls/click?upn=u001.VwavI53V6vcw3NkZZaT5c3BC…>, University of Wisconsin-Madison Juhee Lee <https://u8042292.ct.sendgrid.net/ls/click?upn=u001.VwavI53V6vcw3NkZZaT5c3BC…>, University of California Santa Cruz David Nott <https://u8042292.ct.sendgrid.net/ls/click?upn=u001.VwavI53V6vcw3NkZZaT5c3BC…>, National University of Singapore Stéphanie van der Pas <https://u8042292.ct.sendgrid.net/ls/click?upn=u001.VwavI53V6vcw3NkZZaT5c3BC…>, Amsterdam UMC Bruno Sansó <https://u8042292.ct.sendgrid.net/ls/click?upn=u001.VwavI53V6vcw3NkZZaT5c3BC…>, University of California Mike West <https://u8042292.ct.sendgrid.net/ls/click?upn=u001.VwavI53V6vcw3NkZZaT5c3BC…>, Duke University -- Roberto Casarin, PhD Professor of Econometrics Ca' Foscari University of Venice San Giobbe 873/b - 30121 Venezia, Italy http://sites.google.com/view/robertocasarin/ https://www.unive.it/vera <https://www.unive.it/isba2024> https://www.unive.it/isba2024

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Online seminar in Bayesian Statistics, April 19 2024
by Chiara AMORINO 12 Apr '24

12 Apr '24

Dear all, I am glad to announce the following webinar, organized by the Young Statisticians’ Section of the Irish Statistical Association (Young-ISA). This year's theme is Bayesian Statistics and it will be a joint event between the Young-ISA and The Bernoulli Society for Mathematical Statistics and Probability. Date: Friday April 19th, 2024 Location: Online via Zoom Time: 9:30am - 12.00pm Irish time (10:30am-1:00pm CET) Our invited speakers are: * Prof Claire Gormley, Professor in Statistics at University College Dublin * Dr Matteo Giordano, Assistant Professor in Statistics at the University of Turin * Dr Maeve Upton, Postdoctoral researcher in Statistical Modelling at the University of Limerick * Yong Chen Goh, PhD student in Statistics at Maynooth University The event is free and available to all. We ask you to register to attend by clicking here<https://ddec1-0-en-ctp.trendmicro.com/wis/clicktime/v1/query?url=https%3a%2…>. Zoom details will be shared with registered attendees in advance of the event. Full details of the event are available on the Y-ISA website<https://ddec1-0-en-ctp.trendmicro.com/wis/clicktime/v1/query?url=https%3a%2…>. Best regards, Chiara

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Seminar: Francesca Romana Crucinio April 16, 2024, DAIS - Ca' Foscari University of Venice
by Carlo Gaetan 11 Apr '24

11 Apr '24

Dear all, we are glad to announce the following *online* seminar *April 16, 2024, 12:15 PM* Zoom: https://unive.zoom.us/j/85153268624?pwd=MzBhdlA2M1B2dThJQ2Y5T0EwUE5PZz09 *Speaker*: Francesca Romana Crucinio, King's College London *Title*: A connection between Tempering and Entropic Mirror Descent *Abstract:* This talk explores the connections between tempering (for Sequential Monte Carlo; SMC) and entropic mirror descent to sample from a target probability distribution whose unnormalized density is known. We establish that tempering SMC corresponds to entropic mirror descent applied to the reverse Kullback-Leibler (KL) divergence and obtain convergence rates for the tempering iterates. Our result motivates the tempering iterates from an optimization point of view, showing that tempering can be seen as a descent scheme of the KL divergence with respect to the Fisher-Rao geometry, in contrast to Langevin dynamics that perform descent of the KL with respect to the Wasserstein-2 geometry. We exploit the connection between tempering and mirror descent iterates to justify common practices in SMC and derive adaptive tempering rules that improve over other alternative benchmarks in the literature. Notes: 1) Visit this page https://www.unive.it/pag/41970/ for updates on our seminars. 2) I also take this opportunity to draw your attention to the following academic position Senior Tenure-Track Assistant Professor (RTDB) in Statistics, Ca’ Foscari University of Venice, Italy Application Deadline: May 02, 2024 1:00pm (Italian Time) More information about the call (in Italian and English) can be found at https://www.unive.it/data/38002/?id=2024-UNVE000-0078551 Online application form https://apps.unive.it/domandeconcorso-en/accesso_cf/rtdb-2024secss01psr Informal enquiries about the job and the application process can be made to Professor Cristiano Varin cristiano.varin(a)unive.it Best regards, Carlo Gaetan -- - Dipartimento di Scienze Ambientali, Informatica e Statistica - DAIS Università Ca' Foscari - Venezia Z.A12 - Edificio Zeta Via Torino, 155 I-30172 Mestre (VE) ITALY phone: ++39 041 234 8404 e-mail:[gaetan"at"unive"dot"it] web:[http://www.dais.unive.it/~gaetan] Please don't print this e-mail unless you really need to. Please avoid sending me Word, Excel or PowerPoint attachments. Seehttp://www.gnu.org/philosophy/no-word-attachments.html. Per favore non stampate questo messaggio se non è proprio necessario. Per favore non mandatemi allegati in Word, Excel o PowerPoint. Le ragioni sono spiegate quihttp://www.gnu.org/philosophy/no-word-attachments.it.html

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PhD in Mathematics in Padova - 8 scholarships
by Tiziano Vargiolu 11 Apr '24

11 Apr '24

============================================ ANNOUCEMENT Eight PhD scholarships are available at the University of Padova for candidates interested in all the areas of Mathematics, including probability and finance (start of activities: November 1st, 2024). Eligibility The scholarship competition is open to applicants of any citizenship, holding a 2nd cycle degree or a single cycle degree from an Italian university or an equivalent qualification from other Countries of at least four years’ duration (applicants must obtain their qualification no later than 30th September 2024). Admission is decided on the basis of qualifications, of a motivational letter, of recommendation letters and - for those shorlisted - of an interview. How to apply The call is published (deadline May 13, 2024 - 1 pm CEST) at the page http://www.unipd.it/ricerca/dottorati-di-ricerca/bandi-e-graduatorie English version at the page http://www.unipd.it/en/node/1053 Applications are only accepted online using the link indicated in the call. Applicants must read carefully all instructions provided in the call, including those concerning further benefits (accommodation, see Annex 2, and Galilean School of Higher Education research and accommodation grant, see Annex 3), and the technical notes. Further notices may be found in our site: https://dottorato.math.unipd.it/prospective-students/Admissions_Coming_Year Grant awarded The annual grant will be of euros 16,243.00 (gross amount). The grant will be awarded for three years and it will be subject to satisfactory progresses evaluated on a yearly basis. Applicants who need further assistance may send an email to phd.math(a)math.unipd.it -- Prof. Giovanni Colombo tel.: +39049 8271445 Dipartimento di Matematica "Tullio Levi-Civita" fax : +39049 8271428 Università di Padova room: 534 via Trieste 63, I 35121 PADOVA (Italy) http://www.math.unipd.it/~colombo skype: giovanni.colombo.pd Tiziano -------------------------------------------------------------------------- Tiziano Vargiolu Dipartimento di Matematica Phone: +39 049 8271383 Universita' di Padova Fax: +39 049 8271428 Via Trieste, 63 E-mail: vargiolu(a)math.unipd.it I-35121 Padova (Italy) WWW: http://www.math.unipd.it/~vargiolu --------------------------------------------------------------------------

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Seminar Tommaso Rosati at Tor Vergata 17.04
by Michele Salvi 11 Apr '24

11 Apr '24

Dear all, On Wednesday, April 17th, at 14h30 in Aula Dal Passo of Tor Vergata Math Department, RoMaDS (https://www.mat.uniroma2.it/~rds/events.php) will host Tommaso Rosati (University of Warwick) with the seminar "Lower bounds to Lyapunov exponents of stochastic PDEs” Abstract: Inspired by problems from fluid dynamics, we introduce an approach to obtain lower bounds to Lyapunov exponents of stochastic PDEs. Our proof relies on the introduction of a Lyapunov functional for the projective process associated to the equation, based on the study of dynamics of energy level sets and on a notion of non-degeneracy of the noise that leads to high-frequency stochastic instability. We address some nonlinear problems. Joint works with A. Blessing , M. Hairer, and (in progress) with M. Hairer, S. Punshon-Smith and J. Yi. We encourage in-person partecipation. Should you be unable to come, here is the link to the Teams streaming: https://teams.microsoft.com/l/meetup-join/19%3arfsL73KX-fw86y1YnXq2nk5VnZFw… https://teams.microsoft.com/l/meetup-join/19%3arfsL73KX-fw86y1YnXq2nk5VnZFw… https://teams.microsoft.com/l/meetup-join/19%3arfsL73KX-fw86y1YnXq2nk5VnZFw… https://teams.microsoft.com/l/meetup-join/19%3arfsL73KX-fw86y1YnXq2nk5VnZFw… The seminar is part of the Excellence Project MatMod@TOV.

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Assistant Professor (Tenure Track) in Mathematical Methods of Economics, Finance, and Actuarial Sciences at Ca Foscari, University of Venice
by giulia.iori＠unive.it 11 Apr '24

11 Apr '24

Dear Colleagues, I would like to draw your attention to the approaching deadline for the following academic position (April 14th 2024, AT 1:00 P.M. CET) The Department of Economics at Ca’ Foscari University of Venice is currently seeking applications for an Assistant Professor (Tenure Track) (RTT) in Mathematical Methods of Economics, Finance, and Actuarial Sciences (13/D4 – SECS-S/06). This tenure track opportunity offers a pathway to tenure as an Associate Professor within a timeframe of three to six years, contingent upon a positive evaluation from the department and attainment of the Italian national habilitation to an associate professorship. The Economics Department at Ca Foscari has been recognized as a "Department of Excellence" by the Italian Ministry of Education, University, and Research, securing special financial support for the 2023/2027 period. The department consistently ranks favourably for research output across national and international research rankings. We encourage applications from candidates with a strong research track record whose research aligns with the core themes of the SECS-S/06 disciplinary sector. Ideal candidates will possess expertise in mathematical models and methodologies pertinent to economics, finance, and actuarial sciences. This includes but is not limited to quantitative finance, decision theory, risk and uncertainty management, and the application of agent-based and computational methods (including data analysis). Successful candidates will exhibit a strong commitment to delivering high-quality teaching. The department offers courses taught in both Italian and English at various academic levels, though knowledge of Italian is initially not required. We welcome applications from international scholars. For those based abroad, special conditions apply, and they may benefit from a favourable tax waiver scheme. For additional information concerning the Department of Economics visit http://www.unive.it/pag/28365/. For queries about the application process please contact recruiting.dec(a)unive.it Application Procedure: Apply online at https://bandi.mur.gov.it/jobs.php/public/job/id_job/118942 http://www.unive.it/bandi-ric240 Application deadline: April 14th 2024, AT 1:00 P.M. CET Kind regards, Giulia Iori

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Post-doc position “Stochastic processes for energy transport" at CEREMADE (Paris)
by ALESSANDRA IACOBUCCI 10 Apr '24

10 Apr '24

Dear all, An 18-month post-doc position in "Stochastic Processes for Energy Transport: Models and Simulations" is currently available at CEREMADE (Université Paris-Dauphine-PSL). Details about the position can be found at the following link https://www.ceremade.dauphine.fr/~iacob/PDFs/postdocANRSINEQ.pdf . The starting date is flexible, with a deadline no later than October 2024. Please forward this announcement to any potentially interested candidates. Best wishes, Alessandra Iacobucci and Stefano Olla

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SMF: François Delarue at Milano-Bicocca (Apr 18, 2024)
by Maurizia Rossi 10 Apr '24

10 Apr '24

Dear colleagues, I am glad to announce the following talk which is part of the *"Seminario Matematico e Fisico di Milano" *activities. Speaker: *François Delarue* (Univ. Côte d'Azur) Title:* Mean field control and games. Some prospects. * *Time and place:* April 18, 2024 - 2:00pm-3:00pm - building U5/room 3014 Dept. of Mathematics and Applications, Univ. Milano-Bicocca. *Abstract:* I will first give a brief overview of the notion of mean-field control and games. In particular, I will focus on the Eulerian formulation, through the notion of master equation, which is a nonlinear PDE on the space of probability measures. This PDE is notoriously difficult to solve, at least in a classical sense, except in cases presenting a form of convexity or monotonicity in the argument of the measure. I will then present two problems outside the convex/monotonic framework: (i) non-convex mean-field control problems and their particle approximation, (ii) mean-field games subject to certain non-standard forms of common noise. Best wishes, Maurizia Rossi -- Maurizia Rossi Dipartimento di Matematica e Applicazioni Università degli Studi di Milano-Bicocca https://mauriziarossi.wordpress.com

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Seminar Bianchi postponed, Camia confirmed
by Michele Salvi 09 Apr '24

09 Apr '24

Dear all, The seminar of Alessandra Bianchi tomorrow at Tor Vergata has been postponed to future date. The seminar of Federico Camia “Towards a logarithmic conformal field theory of 2D critical percolation” (see the abstract here: https://www.mat.uniroma2.it/~rds/events.php) is confirmed at 14h30 in Aula Dal Passo or in streaming at the link here below. Best, Michele https://teams.microsoft.com/l/meetup-join/19%3arfsL73KX-fw86y1YnXq2nk5VnZFw…

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6 PhD scholarships in Statistical Sciences – University of Padova, Italy – Deadline May 13, 2024, 1 PM (CEST)
by Susi Ceron 09 Apr '24

09 Apr '24

Six PhD scholarships funded by the University of Padova and Ministry of University and Research are available at University of Padova for candidates interested in the area of *Statistical Sciences (start of activities: November 1st, 2024)*. *Eligibility* The scholarship competition is open to applicants of any age or citizenship, holding a 2nd cycle degree or a single cycle degree from an Italian university or an equivalent qualification from other countries of at least four years’ duration (applicants can get their qualification no later than 30th September 2024). Admission is decided on the basis of qualifications and an interview. *Grant awarded* The annual grant will be of euros *16,243.00* (gross amount). The grant will be awarded for three years and it will be subject to satisfactory progresses evaluated on a yearly basis. *How to apply* The call is published (*deadline May 13, 2024 - 1 pm CEST*) at the page http://www.unipd.it/ricerca/dottorati-di-ricerca/bandi-e-graduatorie English version at the page http://www.unipd.it/en/node/1053 Please note that the curriculum has to be written by filling the template *CV_XL *available from the Course web page http://www.stat.unipd.it/ricerca/ammissione and uploading the filled template in the online procedure. *Applications are only accepted online using the link indicated in the call. * For more information about the Statistical Sciences PhD program see https://www.stat.unipd.it/ricerca/dottorato-di-ricerca For more information about admission see http://www.stat.unipd.it/ricerca/ammissione or contact phd(a)stat.unipd.it Kindest regards, PhD Secretariat on behalf of prof. Nicola Sartori Coordinator of the PhD Course in Statistics University of Padova - Italy *We apologize for cross posting *

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Final Call for Contributions to COPA 2024 Conference @ Polimi
by Simone Vantini 09 Apr '24

09 Apr '24

Dear All, The submission deadline for the COPA 2024 conference that will take place at the Politecnico di Milano, on September 9-11, 2024, is just one week away! We remind you that all contributions must be submitted by April 15, 2024. Please visit the conference website at https://copa-conference.com/ <https://copa-conference.com/> for more details on the event. To submit your paper, please go to the Call for Papers page at https://easychair.org/cfp/copa2024 <https://easychair.org/cfp/copa2024> We look forward to your valuable contribution to the conference. Registration will be opened soon. Best regards, Prof. Simone Vantini Associate Professor of Statistics MOX Laboratory for Modeling and Scientific Computing Department of Mathematics Politecnico di Milano simone.vantini(a)polimi.it <mailto:simone.vantini@polimi.it> Dr. Matteo Fontana Lecturer in Data Science Department of Computer Science School of Engineering, Physical and Mathematical Sciences Royal Holloway, University of London matteo.fontana(a)rhul.ac.uk <mailto:matteo.fontana@rhul.ac.uk>

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PhD Call
by Irene Crimaldi 09 Apr '24

09 Apr '24

Cari tutti, trovate la call per il corso di dottorato "Economics Analytics and Decision Science" della Scuola IMT a questo indirizzo: https://inomics.com/program/8-fully-funded-phd-positions-economics-analytic… *DEADLINE 21 GIUGNO* Cordiali saluti, Irene Crimaldi

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Bernoulli Society New Researcher Award 2025
by Chiara AMORINO 08 Apr '24

08 Apr '24

Dear Colleagues, I forward the call of the Bernoulli Society for the New Researcher Award 2025 (see below). Please spread it to anyone you think might be interested! Cheers, Chiara ----------------------------------- The Bernoulli Society welcomes applications to the New Researcher Award 2025. Each awardee shall deliver a talk at a special invited session during the 65th ISI World Statistics Congress to be held in The Hague from October 5-10, 2025, and will receive a funding up to 1000 EUR to offset travel and other expenses. Bernoulli News will publish their pictures and a paragraph about their work. Eligible candidates are active researchers in Mathematical Statistics who obtained the PhD degree on or after June 15th, 2019, and who are regular members of the Bernoulli Society. An extension may be given to those having had disruptions after receiving the PhD, such as parenthood. Diversity among the awardees is one of the Society’s goals, and therefore women and members of under-represented groups are particularly encouraged to apply. Candidates should apply through the web form https://forms.gle/Z1pn78hj6i7X3THX8 and send the required documents to the e-mail address indicated in the form. Deadline: June 15th, 2024

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Ph.D Position in "Mathematical Foundation for Deep Learning Algorithms" at the TU Chemnitz
by Imma Curato 08 Apr '24

08 Apr '24

Dear Colleagues, I am hiring a Ph.D. student at the Faculty of Mathematics of the TU Chemnitz to work on a project in "Mathematical Foundation for Deep Learning Algorithms". The DFG (German Research Foundation) partially covers the position and is a project in collaboration with the London Imperial College and its NEST Program. More information on the position and how to apply can be found at the below link: https://www.tu-chemnitz.de/verwaltung/personal/stellen/172000_8_Rich.php Best Regards Imma Curato

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Workshop Climate Change and Insurance, Vienna, Sept. 2024
by Fabio Colpo 08 Apr '24

08 Apr '24

Dear collegues and friends, "Climate Change and Insurance": the abstract submission and registration are now open https://fam.tuwien.ac.at/cci2024 The workshop "Climate Change and Insurance" will take place 4th-6th of September 2024 at the TU Wien, Vienna, Austria. The main aim is to enhance understanding of climate change impacts on the insurance sector. The three-day event "Climate Change and Insurance" is designed to encourage collaborations between actuaries and academics. The workshop participants can present their research focused on climate change in actuarial sciences, enjoy the plenary talks and participate in the panel discussion "Climate Change and Insurance: Past, Present and Future" 1) Plenary speakers: * Carmen Boado-Penas: "Climate emergency: Understanding the risks" * Jose Garrido: "Actuarial climate indexes : International comparative study and insurance applications" * Robert Holzmann: "Damages by extreme weather and the case of insurance" * Chris Kenyon: "Climate-economy scenario/probability construction for financial markets" * Ralf Korn: "Optimal investment with sustainable assets - Aspects for a life insurer" * Frank Schiller: "Climate Change might not only impact the insurance risks – The whole business model needs a thorough review" 2) Important Dates: * Workshop: September 4th-6th, 2024. * Abstract submission deadline: May 15th, 2024. * Notification of acceptance: May 31st, 2024. 3) Special Issue "Climate Change and Insurance" in European Actuarial Journal: https://link.springer.com/journal/13385/updates 4) We will run an exciting mini-workshop on AI in Climate Risk. Website: https://fam.tuwien.ac.at/cci2024 Questions: jeisenbe(a)fam.tuwien.ac.at or cci2024(a)fam.tuwien.ac.at Subscribe to get oven-fresh updates: https://fam.tuwien.ac.at/mm/postorius/lists/cci-news.fam.tuwien.ac.at We look forward to welcoming you in Vienna! Hirbod Assa, Carmen Boado-Penas, Julia Eisenberg

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An afternoon on the spectral theory of pseudo-differential operators
by Enrico Scalas 08 Apr '24

08 Apr '24

Dear Colleagues, On 9 april 2024 starting from 14:00 in room 34, 4th floor of the Department of Statistical Sciences, Sapienza University of Rome, (building CU002), two seminars on non-local operators will take place. Here is the program. Please feel free to inform interested people. Best regards, Enrico Scalas -- 14:00 - 15:00 Atsuhide Ishida (Tokyo University of Science, Tokyo, Japan) Mourre inequality for non-local Schrödinger operators We consider the Mourre inequality for the following self-adjoint operator $H=\Psi(-\Delta/2)+V$ acting on $L^2(\mathbb{R}^d)$, where $\Psi: [0,\infty)\rightarrow\mathbb{R}$ is an increasing function, $\Delta$ is the Laplacian and $V: \mathbb{R}^d\rightarrow\mathbb{R}$ is an interaction potential. Mourre inequality immediately yields the discreteness and finite multiplicity of the eigenvalues. Moreover, the Mourre inequality together with the limiting absorption principle can be used to show absence of the singular continuous spectrum. In addition, Mourre inequality is also used for the proof of the minimal velocity estimate that plays an important role in scattering theory. In this talk, we report that Mourre inequality holds under a general $\Psi$ and $V$ by choosing the conjugate operator $A=(p \cdot x + x \cdot p)/2$ with $p= - i \nabla$, and that the discreteness and finite multiplicity of the eigenvalues hold. This talk is a joint work with J. Lőrinczi (Alfred Rényi Institute) and I. Sasaki (Shinshu University). 15:00 - 15:30 Coffee break 15:30 - 16:30 József Lőrinczi (Alfred Rényi Institute, Budapest, Hungary) Embedded eigenvalues for a class of non-local Schrödinger operators Generally, the spectrum of a non-local Schrödinger operator may be rather intricate, even when they are self-adjoint operators. In this talk I plan to discuss some explicit cases when positive or zero eigenvalues occur, and also address the problem more generally, aiming to describe potentials which can give rise to zero eigenvalues for massive or massless (fractional) relativistic Schrodinger operators. If time permits, I intend to explain how random processes with jumps can be used to analyse such properties. 16:30 - 18:00 Discussion time

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Seminario PRISMA oggi
by Francesco Caravenna 08 Apr '24

08 Apr '24

Seminari on-line del gruppo UMI - PRISMA (http://www.umi-prisma.polito.it/ <http://www.umi-prisma.polito.it/>) Ricordiamo che oggi, lunedì 8 aprile 2024, Emanuela Sasso (Università di Genova) e Federico Girotti (Politecnico di Milano) ci parleranno di Semigruppi quantistici markoviani: decoerenza, ricorrenza e accessibilità con il seguente orario: 16:00 Primo seminario 16:30 Pausa e discussione 16:45 Secondo seminario 17:15 Conclusione e discussione Trovate di seguito il riassunto. I seminari verranno trasmessi via Zoom al seguente link: https://uniroma1.zoom.us/j/82939128330 <https://uniroma1.zoom.us/j/82939128330> Meeting ID: 829 3912 8330 Vi aspettiamo numerosi, Valentina Cammarota e Francesco Caravenna %%%%%%%%%%%%%%%%%%%%%%%%%%%% RELATORI: Emanuela Sasso (Università di Genova) e Federico Girotti (Politecnico di Milano) TITOLO: Semigruppi quantistici markoviani: decoerenza, ricorrenza e accessibilità RIASSUNTO: I semigruppi markoviani quantistici sono essenzialmente semigruppi di operatori positivi su algebre di operatori con le opportune proprietà di continuità e che rafforzano la positività. Appaiono nella letteratura fisica e fisico-matematica alla fine degli anni '60 con il nome di semigruppi dinamici quantistici nella modellizzazione e nell'analisi dei sistemi aperti in meccanica quantistica. Tuttavia, dal punto di vista matematico, costituiscono la naturale generalizzazione dei semigruppi markoviani classici, infatti questi ultimi sono semigruppi di operatori definiti su un'algebra di funzioni, cioè un'algebra di operatori che commutano tra loro. Il modo più naturale per descrivere un sistema quantistico è un’algebra di Von Neumann e la sua evoluzione come una famiglia di operatori debole*-continui, che formino un semigruppo e che abbiano la proprietà di markovianità. Se il sistema è chiuso allora la sua evoluzione è reversibile, altrimenti se interagisce con l’ambiente allora ci potrebbe essere una parte diffusiva. In Fisica, si parla di “decoerenza” quando solo una parte del sistema evolve in maniera automorfica (l’algebra priva di decoerenza, appunto) e una parte “scompare” per tempi lunghi. La nostra ricerca si è focalizzata a lungo su quale definizione di decoerenza sia più adatta e se è possibile trovare condizioni necessarie e sufficienti per il suo verificarsi. Nello studio dei processi (semigruppi) di Markov classici sono fondamentali le nozioni di ricorrenza e comunicazione tra insiemi di stati; mostreremo come questi concetti siano stati generalizzati nel caso noncommutativo e discuteremo alcune delle loro proprietà e relazioni. Particolare attenzione sarà dato al caso in cui l’algebra su cui agisce il semigruppo sia l’insieme di tutti gli operatori lineari limitati che agiscono su uno spazio di Hilbert. %%%%%%%%%%%%%%%%%%%%%%%%%%%% I seminari PRISMA hanno un formato di "colloquium", per creare un'occasione di scambio e discussione con tutta la comunità dei probabilisti e statistici italiani. Ogni giornata comprende due relatori che tengono due seminari di 30 minuti strettamente connessi, per presentare alla comunità una prospettiva sul proprio ambito di ricerca. Da quest'anno le registrazioni dei seminari vengono pubblicate sul canale YouTube dell'UMI: https://www.youtube.com/playlist?list=PLmySpc-jrtAMq84VH71evyqPc1hl6eEQb %%%%%%%%%%%%%%%%%%%%%%%%%%%%

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De Finetti seminar: Marcel Nutz, April 16
by Marco Maggis 08 Apr '24

08 Apr '24

On behalf of the Scientific Committee of the "B. de Finetti Risk Seminars, Milano Lectures on the Mathematical Theory of Economics and Finance”, we are glad to invite you to participate at the following lecture: Marcel Nutz Columbia University (New York) Title: Entropic Selection in Optimal Transport Abstract: The optimal transport problem can admit many solutions, for instance when the cost function is the Euclidean distance on R^d (Monge's problem). On the other hand, entropically regularized optimal transport (EOT) always has a unique optimizer. It is a longstanding open problem whether EOT selects some particular optimal transport coupling in the vanishing regularization limit, and what that coupling would look like. We provide a surprising answer for Monge's problem in dimension d > 1. (Joint work with Chenyang Zhong.) LOCATION: The seminar will be held on *April 16, *2024 at *17.30,* Sala di Rappresentanza, Dipart. Matematica, Università di Milano, Via Saldini 50, Milano. Scientific Committee: Prof. Simone Cerreia-Vioglio (Univ. Bocconi) Prof. Marco Frittelli (Univ. degli Studi di Milano) Prof. Fabio Maccheroni (Univ. Bocconi) Prof. Marco Maggis (Univ. degli Studi di Milano) Prof. Massimo Marinacci (Univ. Bocconi) Prof. Emanuela Rosazza Gianin (Univ. Milano-Bicocca)

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Pisa Mini-Workshop 16th April
by Eliseo LUONGO 08 Apr '24

08 Apr '24

Dear Colleagues, I would like to advertise a workshop held in Pisa on noise and singularity within interacting particle systems. Best regards, Eliseo Luongo. --------------------- Dear Colleagues, This is to announce that there will be a half-day, in person, informal workshop held in Pisa,* Tuesday 16th April* on the topic of *Noise and Singularity within Interacting Particle Systems,* further details are below. All are welcome to attend and no registration is necessary, however, if you are not a usual, in person, attendee of the SPASS seminar at University of Pisa then please email jacob.mayorcas(a)sns.it so that we can gauge numbers. *Title: *Noise and Singularity within Interacting Particle Systems *Date: *Tuesday 16th April *Location: *Sala Conferenze Puteano, Centro Ennio de Giorgi *Schedule:* 11:30 - 12:25: *Yoan Tardy:* Collisions of the supercritical Keller-Segel particle system 12:15 - 14:00: *Lunch* 14:00 - 14:55: *Mario Maurelli:* Existence and uniqueness by Kraichnan noise for 2D Euler equations with unbounded vorticity 14:55 - 15:30: *Coffee* 15:30 - 16:25: *Milica Tomašević:* Particle approximation of the doubly parabolic Keller-Segel equation in the plane 16:25 - 17:10: *Lucio Galeati: *Propagation of chaos for singular interacting particle systems driven by fBm Best wishes, A. Mayorcas and F. Flandoli.

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Workshop Junior Female Researchers in Probability, Berlin, July 3--5
by Alexander Zass 05 Apr '24

05 Apr '24

Care colleghe e cari colleghi, Inoltro l’annuncio per il workshop *Junior Female Researchers in Probability*, che si terrà a Berlino *dal 3 al 5 luglio*. Vi prego di diffonderlo a chiunque crediate possa interessare. Cordiali saluti, Alexander Zass ----- We're excited to announce the workshop Junior Female Researchers in Probability, taking place July 3--5, 2024 at TU Berlin. The workshop offers junior female researchers in stochastics a platform to present their research and network in an informal setting. Keynote lectures will be given by: Amandine Véber (Paris) Anita Winter (Duisburg-Essen) Additional invited talks will be given by: Julia Eisenberg (Vienna) Sophie Langer (Twente) Maud Lemercier (Oxford) Makiko Sasada (Tokyo) We warmly invite those who identify as female to submit abstracts for contributed talks, and apply for financial support for travelling to Berlin. For details on abstract submission and registration, visit the website: https://www.wias-berlin.de/workshops/JFRP24/ The organizing team — Peter Bank, Marta Dai Pra, Ana Djurdjevac, Dörte Kreher, Gemma Lucia Sedrakjan, Janine Steck, Weile Weng, Maite Wilke Berenguer, César Zarco-Romero, and Alexander Zass — is looking forward to welcoming you in Berlin for a productive and engaging workshop.

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Mathematical Aspects of Quantum Information
by Sonia Mazzucchi 05 Apr '24

05 Apr '24

Buongiorno, vi inoltro l'annuncio di questo workshop. Buona giornata Sonia -------------------------------------------------------------------------------------------------- Dear all, we are glad to announce the workshop "*Mathematical Aspects of Quantum Information*", which will take place at *Politecnico di Torino *(Aula Buzano, DISMA) on *April 16-18, 2024*. This is the kick-off event of the GNAMPA INDAM Project 2024 "Tecniche analitiche e probabilistiche in informazione quantistica". We are pleased to host a minicourse by *Nilanjana Datta *(University of Cambridge), as well as invited lectures by: - *Marco Genovese *(INRIM) - *Davide Girolami *(Politecnico di Torino) - *Roberto Proietti *(Politecnico di Torino) - *Dario Trevisan *(University of Pisa) More details on the program can be found in the conference website: https://sites.google.com/view/mathqi24/. Registration is free of charge, but mandatory. Please circulate this message to potentially interested participants. Best regards, the organizing committee (Riccardo Adami - Ivan Gallo - Fabio Nicola - Federico Riccardi - S. Ivan Trapasso)

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Seminars in Statistics - Varun Jog & Po-Ling Loh
by Pierpaolo De Blasi 05 Apr '24

05 Apr '24

SEMINARS IN STATISTICS @ COLLEGIO CARLO ALBERTO <https://www.carloalberto.org/events/category/seminars/seminars-in-statistic…> Venerdi 12 Aprile 2024, presso il Collegio Carlo Alberto, in Piazza Arbarello 8, Torino, si terranno i seguenti *2 seminari*: ------------------------------------------------ *11.00-12.00* Speaker: Varun Jog (University of Cambridge, UK) Title: *The sample complexity of simple binary hypothesis testing* Abstract: The sample complexity of simple binary hypothesis testing is the smallest number of i.i.d. samples required to distinguish between two distributions p and q such that the Type-I and Type-II errors are smaller than some pre-specified thresholds α and β, respectively. Our main contribution is deriving, under mild technical conditions, a formula for the sample complexity in terms of parameters p, q, alpha, and beta, that is tight up to universal multiplicative constants. ------------------------------------------------ *12.00-13.00* Speaker: Po-Ling Loh (University of Cambridge, UK) Title: *Differentially private M-estimation via noisy optimization* Abstract: We present a noisy composite gradient descent algorithm for differentially private statistical estimation in high dimensions. We begin by providing general rates of convergence for the parameter error of successive iterates under assumptions of local restricted strong convexity and local restricted smoothness. Our analysis is local, in that it ensures a linear rate of convergence when the initial iterate lies within a constant-radius region of the true parameter. At each iterate, multivariate Gaussian noise is added to the gradient in order to guarantee that the output satisfies Gaussian differential privacy. We then derive consequences of our theory for linear regression and mean estimation. Motivated by M-estimators used in robust statistics, we study loss functions which downweight the contribution of individual data points in such a way that the sensitivity of function gradients is guaranteed to be bounded, even without the usual assumption that our data lie in a bounded domain. We prove that the objective functions thus obtained indeed satisfy the restricted convexity and restricted smoothness conditions required for our general theory. We then show how the private estimators obtained by noisy composite gradient descent may be used to obtain differentially private confidence intervals for regression coefficients, by leveraging work in Lasso debiasing proposed in high-dimensional statistics. We complement our theoretical results with simulations that illustrate the favorable finite-sample performance of our methods. ------------------------------------------------ Sarà possibile seguire entrambi i seminari anche in streaming: Join Zoom Meeting <https://us02web.zoom.us/j/88987605028?pwd=YXN1akl1bkN3TEFlS3QrMWFDWEF5dz09> I seminari sono organizzati dalla "de Castro" Statistics Initiative www.carloalberto.org/stats -- Pierpaolo De Blasi University of Torino & Collegio Carlo Alberto carloalberto.org/pdeblasi <https://sites.google.com/a/carloalberto.org/pdeblasi/>

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Seminario Padova - Stephan Eckstein
by alekos.cecchin＠unipd.it 04 Apr '24

04 Apr '24

Buongiorno, Il seminario di Stephan Eckstein di domani (titolo e abstract in basso) si potrà seguire anche su zoom: Argomento: Seminario Padova - Stephan Eckstein Ora: 5 apr 2024 02:30 PM Roma Entra Zoom Riunione https://unipd.zoom.us/j/86749461733 ID riunione: 867 4946 1733 Da: Alekos Cecchin via Random <random(a)lists.dm.unipi.it> Inviato: martedì 2 aprile 2024 21:38 A: random(a)mail.dm.unipi.it Oggetto: [Random] Seminario Padova - Stephan Eckstein Buongiorno a tutti, Vorremmo segnalarvi che venerdì prossimo (5 Aprile) alle ore 14:30 in aula 2AB40 (Torre Archimede, Università di Padova) ci sarà un seminario per il ciclo di seminari in Probabilità e Finanza di: Stephan Eckstein (Tübingen University) <https://sites.google.com/view/stephan-eckstein/startseite> https://sites.google.com/view/stephan-eckstein/ Title: Exponential convergence of Sinkhorn's algorithm and Hilbert's projective metric for unbounded functions Date: April 5, 2024, at 14:30, 2AB40 Abstract: Entropic regularization of optimal transport has found numerous applications in various fields recently. A major reason of this surge in applications is the popularization of Sinkhorn's algorithm to efficiently solve the entropic optimal transport problem numerically. The topic of this talk is the (rate of) convergence of Sinkhorn's algorithm. In bounded settings, it is known that Sinkhorn's algorithm converges with exponential rate, which is a consequence of applying a commonly used version of Hilbert's metric corresponding to the cone of all non-negative functions. This talk shows how to define versions of Hilbert's metric so that we can show exponential convergence of Sinkhorn's algorithm even in unbounded settings. This is done through the use of cones which are a relaxations of the cone of all non-negative functions, in the sense that they include all functions having non-negative integral values when multiplied with certain test functions. Along the way, we establish that kernel integral operators are contractions with respect to suitable versions of Hilberts metric, even if the kernel functions are not bounded away from zero. Vi aspettiamo numerosi! Alberto Chiarini e Alekos Cecchin Sito web del seminario: https://www.math.unipd.it/~chiarini/seminars/

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