- Random - Mailing list — Dipartimento di Matematica, UniPI

ISBA@CIRM (France)
by Julyan Arbel 10 May '21

10 May '21

Dear all, There will be a mirror workshop for ISBA world meeting, 28 June – 2 July, at CIRM in Marseille calanques (France). It is now possible to register to CIRM: https://conferences.cirm-math.fr/2701.html There is no registration fee, the only cost being the full-board on-site accommodation at CIRM to be paid upon arrival. More details: https://xianblog.wordpress.com/2021/05/10/isbcirm-through-the-looking-glass/ Best, Julyan Arbel Inria Grenoble Rhône-Alpes http://www.julyanarbel.com/ @JulyanArbel

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Internships in supervised machine learning at the Basque Center for Applied Mathematics, Bilbao, Spain
by Gianni Pagnini 10 May '21

10 May '21

Cari colleghi, Vorrei diffondere attraverso questa mailing-list l’avviso di due possibilità di internship della durata di 3 mesi presso il BCAM di Bilbao su temi legati al machine learning. La scadenza per inviare le domande è il 1 Luglio. I link per accedere alla descrizione delle proposte sono i seguenti http://www.bcamath.org/documentos_public/archivos/internships/BCAM_Internsh… <http://www.bcamath.org/documentos_public/archivos/internships/BCAM_Internsh…> http://www.bcamath.org/documentos_public/archivos/internships/BCAM_Internsh… <http://www.bcamath.org/documentos_public/archivos/internships/BCAM_Internsh…> mentre l’invio delle domande deve avvenire attraverso questo http://www.bcamath.org/en/research/internships <http://www.bcamath.org/en/research/internships> Grazie. Saluti, Gianni — Gianni Pagnini Ikerbasque Research Associate BCAM - Basque Center for Applied Mathematics Alameda de Mazarredo, 14 E-48009 Bilbao, Basque Country - Spain Tel. +34 946 567 842 gpagnini(a)bcamath.org | www.bcamath.org/gpagnini ( matematika mugaz bestalde )

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Two postdoc positions at Lille (France)
by Giovanni Conforti 10 May '21

10 May '21

Ricevo e inoltro %%%%%%%%%%%%%%%%%%%%%%%% Dear colleagues, Two 1-year postdoc positions are available at Institut Mines Télécom (IMT) Lille Douai, France, from September 2021: * with Benoît Henry and David Coupier, Beyond5G project; * with David Coupier, ANR GrHyDy. More informations can be found in the attached files. To be widely distributed, David Coupier

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bando dottorato "Methods and Models for Economic Decisions"
by Enrico Moretto 10 May '21

10 May '21

agli amministratori della lista Random; con la presente chiedo, se del caso, di inviare all'indirizzario RANDOM il seguente annuncio relativo al bando per l'ammissione al dottorato "Methods and Models for Economic Decisions", 37-esimo ciclo, offerto dal Dipartimento di Economia, Università dell'Insubria. Grazie mille. Cordiali saluti, enrico moretto *** Si informano i colleghi interessati, con preghiera di diffusione, che il bando del nuovo ciclo del dottorato "Methods and Models for Economic Decisions" è stato pubblicato sul sito internet dell'Ateneo dell'Insubria ed è disponibile ai seguenti link: https://www.uninsubria.it/la-didattica/dottorati-di-ricerca https://www.uninsubria.it/opportunita/ammissione-al-dottorato-methods-and-m… https://www.uninsubria.eu/programs/phd-doctoral-research Scadenza per le domande: 15 giugno. Cordiali saluti -- Dipartimento di Economia Università dell'Insubria #ChiarementeInsubria https://www.uninsubria.it/hpp/enrico.moretto

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LTI@Unito/CCA webinar in Quantitative Finance: “Self Inflicted Debt Crises”, Theo Dimpoulos (HEC Lausanne) | May 12, 2021 @12:00
by Luca Regis 07 May '21

07 May '21

Dear Colleagues, I am happy to share with you the following invitation to the Quantative Finance webinar organized by LTI@UniTO and Collegio Carlo Alberto, “Self Inflicted Debt Crises” by Theo Dimopoulos (HEC Lausanne), which will take place on Zoom on May 12, at 12.00. Below you find the Zoom link and an abstract of the presentation. Best regards, Luca Regis <#> <https://4z5y5.r.a.d.sendibm1.com/mk/cl/f/4a6SaiafujNub6pHriwakj0wncDAbmtUwm…> <#> LTI@Unito and Fondazione Collegio Carlo Alberto are pleased to invite you to the next webinar <#> *May 12, 2021 | 12:00-13:15* *“Self Inflicted Debt Crises”* *Theo Dimopoulos (HEC Lausanne)* <#> *Abstract*: The restrictions on economic activity in the Covid-19 pandemic have led to a looming debt crisis. In a dynamic model of strategic default and debt renegotiation, we show how to resolve debt crises depending on borrowers’ time-inconsistent preferences. Myopic borrowers misprice their option to default by a U-shaped negative pricing error, which causes imperfect consumption smoothing, underinvestment in normal times, and risk shifting in crisis times. The model shows that bailouts need to be tailored to borrowers’ myopia, that lenders and borrowers ultimately self-inflict debt crises through their strategic interaction, that myopic distress can be cheaper to resolve than rational distress, and that myopia can be beneficial for rational agents. Optimal bailouts either punish or reward myopia through smaller or larger transfers, leading to procrastinated default and protracted crises or the reverse, depending on whether transfers exacerbate or alleviate the borrowers’ misperception of default risk. *Zoom Link*: https://us02web.zoom.us/j/86981911369?pwd=enM0c0lRM1BqOUhiNXJ1b1hoRUFkZz09 <https://4z5y5.r.a.d.sendibm1.com/mk/cl/f/hbrUdAY_KcHiYFp-zoUEFWWBp9T0Kg0cUl…> Meeting ID: 869 8191 1369 Passcode: 166986 <#> <#> <#> <https://4z5y5.r.a.d.sendibm1.com/mk/cl/f/Kc1f2ufQnOOWcPREh0lKmL7Q4fzC6kZTEu…> <https://4z5y5.r.a.d.sendibm1.com/mk/cl/f/b-edRrCQzu0enNR_azA3LGWp3pL_izmv84…> <#> FONDAZIONE COLLEGIO CARLO ALBERTO Piazza Arbarello 8 - 10122 Torino, Italy phone: +390116705000 segreteria(a)carloalberto.org - www.carloalberto.org Facebook <https://4z5y5.r.a.d.sendibm1.com/mk/cl/f/Gt2401hi4FK-WGDLZAuu96sNqvjzd4A07j…> Twitter <https://4z5y5.r.a.d.sendibm1.com/mk/cl/f/dMAP2G9V5OGEVQgiZTVGvRpJC3GmNfL6Kc…> LinkedIn <https://4z5y5.r.a.d.sendibm1.com/mk/cl/f/ZfldktwuWczKYK5tZjUQN--QuFGPkzyS3J…> Instagram <https://4z5y5.r.a.d.sendibm1.com/mk/cl/f/lxHhxw7_pN8bfa4lRN1Ro0KNXDKFYNSqGI…> Youtube <https://4z5y5.r.a.d.sendibm1.com/mk/cl/f/toZ5omiJqAM-e_mmWMFepsHZKCAJ2-Skq2…> <#> *INFORMATION UNDER THE NEW GENERAL DATA PROTECTION REGULATION (GDPR)* Your personal information has been gathered for the exclusive purpose of informing you about the Collegio's initiatives, considering our and your legitimate interest or your consent. If you wish to have your personal data modified please contact Fondazione Collegio Carlo Alberto, piazza Arbarello 8, 1022 Torino, Italy - phone: +390116705000 - privacy(a)carloalberto.org *Unsubscribe* <https://4z5y5.r.a.d.sendibm1.com/mk/un/VBSMfA5QdgOL83sSDLP1ssvlYSrtMdGDR3mB…> <#> © 2021 Fondazione Collegio Carlo Alberto

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Phd Position at the Turin and Pau Universities
by Bruno Toaldo 07 May '21

07 May '21

The PhD School of the University of Turin, in the context of the PhD course in "Modeling and Data Science", offers: 1 PhD position on the project "Numerical approximations of non-local parabolic equations based on stochastic and finite elements methods and applications", starting on Nov 1, 2021. The project is a joint research initiative of the Stochastic group in the Dept. of Mathematics at the University of Turin (Italy) and the Numerical Analysis group in the "Laboratoire de Mathématique et de leurs applications" at the University of Pau (France). The advertised position will be based in both universities and will offer ample freedom to suitably organize the stay in the two cities. The possibility of double PhD Degree could be considered. The gross salary is 1458/month during the stay in Turin and could be increased of about 50% during the period in Pau. Embedded in a truly international environment, the student will get excellent research training in a structured programme focussing on challenges at the mathematical foundations of the stochastic and numerical approach to PDEs as well as on challenges arising from its various applications, e.g., in physics, biology, finance or data science. The combined expertise from the Turin and Pau groups will provide a significant breadth in depth and fertile ground for our student's ambitious research ideas. Successful candidates will have an MSc degree (or equivalent) in Mathematics (or a closely related field such as Applied Mathematics, Computational Science, Physics or Statistics), strong knowledge on stochastic processes or numerical methods, and feel eager to engage in the exchange of ideas with the teams in both Turin and Pau. For further information, please contact Bruno Toaldo: bruno.toaldo(a)unito.it -- Prima di stampare, pensa all'ambiente ** Think about the environment before printing Please don't send me Word or PowerPoint attachments if not absolutely necessary. See: http://www.gnu.org/philosophy/no-word-attachments.en.html <http://www.gnu.org/philosophy/no-word-attachments.html>

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Seminar announcement
by Marco Scarsini 07 May '21

07 May '21

Thursday, 13 May, 17:00 CEST *Yiling Chen,* Harvard University Forecast Aggregation via Peer Prediction <http://mailsender.luiss.it/lists/lt.php?id=cRpQBAIDSAULBwNOVgFdBQs> Discussants: Ville Satopää and Aris Filos-Ratsikas The paper can be found here <https://arxiv.org/abs/1910.03779>. This is the link to the Virtual Room <http://mailsender.luiss.it/lists/lt.php?id=cRpQAAYBSAULBwNOVgFdBQs>. If you want to receive the password to access the virtual room, please fill out this form <https://docs.google.com/forms/d/e/1FAIpQLSeDxM-M5ogG43elgjC-lNCp0BDhISiZHG0…> (If you filled it out in the past, this is not necessary). The schedule of the upcoming seminars can be found here <https://economiaefinanza.luiss.it/en/seminars/2020-2021-seminars>. ******************************************************* Marco Scarsini Dipartimento di Economia e Finanza Luiss Viale Romania 32 00197 Roma, ITALY URL: http://docenti.luiss.it/scarsini/

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BAYSM 2021: extended deadline for registration & abstract submission
by Federico Camerlenghi 07 May '21

07 May '21

Dear all, This is a friendly reminder that the Bayesian Young Statisticians Meeting (BAYSM2021) will take place online on September 1-3, 2021. We are also happy to announce that the registration deadline has been extended to the end of May. The registration link is https://events.stat.uconn.edu/BAYSM2021/ . Although the conference will be free, registration is mandatory. Young researchers interested in giving a talk or presenting a poster are invited to *submit an extended abstract by May 31, 2021* during the registration process. Our decisions will be emailed by the end of June. *The extended abstract should be written according to the template and instructions provided on the registration page.* The template is downloadable from the "Resources" section on the website. For organizational reasons, we kindly ask all the interested researchers to register even if they just want to attend the meeting. The deadline for registration is again May 31, 2021. While the meeting is organized for and by junior Bayesians, attendance is open to anyone who may be interested. For more information, please visit the conference website: https://events.stat.uconn.edu/BAYSM2021/ Or write an email to baysm.isba(a)gmail.com On behalf of the BAYSM2021 organizing committee. -- Federico Camerlenghi Assistant Professor RTDb Department of Economics, Management and Statistics University of Milano Bicocca, Milano, Italy. web-page: https://www.unimib.it/federico-camerlenghi

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Pisa Online Seminars - Michael Högele and Alessandra Caraceni (Tuesday, May 11 at 16:00 and 17:00)
by Giacomo Filippo Di Gesu 06 May '21

06 May '21

Dear colleagues, I would like to invite you to the following online seminar organized by the Probability group of the University of Pisa. The two talks will be accessible under the link Click here to join<https://teams.microsoft.com/l/meetup-join/19:af3d635091e049579e555a84219ab3…"Tid":"c7456b31-a220-47f5-be52-473828670aa1","Oid":"dfd1e5f6-331d-43e0-a180-4bb6ce727fb7"}> Best regards, Giacomo Tuesday, May 11, 16:00 Speaker: Michael Högele (Universidad de los Andes) Title: Cutoff thermalization for Ornstein-Uhlenbeck systems with small Lévy noise in the Wasserstein distance Abstract: This talk presents recent results on cutoff thermalization (also known as the cutoff phenomenon) for a general class of asymptotically exponentially stable Ornstein-Uhlenbeck systems under ε-small additive Lévy noise. The driving noise processes include Brownian motion, α-stable Lévy flights, finite intensity compound Poisson processes and red noises and may be highly degenerate. Window cutoff thermalization is shown under generic mild assumptions, that is, we see an asymptotically sharp ∞/0-collapse of the renormalized Wasserstein distance from the current state to the equilibrium measure μ^ε along a time window centered in a precise ε-dependent time scale t_ε . In many interesting situations such as reversible (Lévy) diffusions it is possible to prove the existence of an explicit, universal, deterministic cutoff thermalization profile. The existence of this limit is characterized by the absence of non-normal growth patterns in terms of an orthogonality condition on a computable family of generalized eigenvectors of the matrix Q. With this piece of theory at hand this article provides a complete discussion of the cutoff phenomenon for the classical linear oscillator with friction subject to ε-small Brownian motion or α-stable Lévy flights. Furthermore, we cover the highly degenerate case of a linear chain of oscillators in a generalized heat bath at low temperature. Tuesday, May 11, 17:00 Speaker: Alessandra Caraceni (University of Oxford) Title: Polynomial mixing time for edge flips on planar maps Abstract: A long-standing problem proposed by David Aldous consists in giving a sharp upper bound for the mixing time of the so-called “triangulation walk”, a Markov chain defined on the set of all possible triangulations of the regular n-gon. A single step of the chain consists in performing a random edge flip, i.e. in choosing an (internal) edge of the triangulation uniformly at random and, with probability 1/2, replacing it with the other diagonal of the quadrilateral formed by the two triangles adjacent to the edge in question (with probability 1/2, the triangulation is left unchanged). While it has been shown that the relaxation time for the triangulation walk is polynomial in n and bounded below by a multiple of n^{3/2}, the conjectured sharpness of the lower bound remains firmly out of reach in spite of the apparent simplicity of the chain. For edge flip chains on different models – such as planar maps, quadrangulations of the sphere, lattice triangulations and other geometric graphs – even less is known. We shall discuss results concerning the mixing time of random edge flips on rooted quadrangulations of the sphere obtained in joint work with Alexandre Stauffer. A “growth scheme” for quadrangulations, which generates a uniform quadrangulation of the sphere by adding faces one at a time at appropriate random locations, can be combined with careful combinatorial constructions to build probabilistic canonical paths in a relatively novel way. This method has implications for a range of interesting edge-manipulating Markov chains on so-called Catalan structures, from “leaf translations” on plane trees to “edge rotations” on general planar maps. ************************ Giacomo Di Gesù Dipartimento di Matematica Università di Pisa Largo Bruno Pontecorvo 5 56127 - Pisa, Italy giacomo.digesu(a)unipi.it<mailto:giacomo.digesu@unipi.it> https://sites.google.com/site/giacomodigesu/

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bando per RTDB in SECS-S/06 a Pavia
by benedetta.ferrario 05 May '21

05 May '21

Presso il Dipartimento di Scienze Economiche e Aziendali dell'Università di Pavia è stato bandito un posto RTD-B nel settore SECS-S/06, consultabile al link http://wcm-3.unipv.it/site/home/ateneo/bandi-e-concorsi/concorsi-per-person… Scadenza presentazione domande: 3 giugno 2021 ore 12.00. Si prega di dare la massima diffusione presso tutti gli interessati.

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