May 2020 - Random - Mailing list — Dipartimento di Matematica, UniPI

Ph.D. position in Mathematical Finance at Bielefeld University
by Giorgio Ferrari 15 May '20

15 May '20

Dear All, this is to inform about a *Ph.D. position in Mathematical Finance* (in particular on the theory of stochastic optimal control and optimal stopping with financial and economic applications) at Bielefeld University within the "Bielefeld Graduate School in Economics and Management" ( http://www.bigsem.de/ ) *DEADLINE* for applications: *June 05* *DETAILS* about the post and the application procedure can be found at: <https://www.uni-bielefeld.de/Universitaet/Aktuelles/Stellenausschreibungen/…> https://www.uni-bielefeld.de/Universitaet/Aktuelles/Stellenausschreibungen/… The successful candidate will be based at the Center for Mathematical Economics (IMW) of Bielefeld University ( https://www.uni-bielefeld.de/imw/ ) and will work under my supervision. All the best wishes, Giorgio Ferrari -- Questa e-mail è stata controllata per individuare virus con Avast antivirus. https://www.avast.com/antivirus

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RMTA 2020 New York May 25-29
by Davide Macera 14 May '20

14 May '20

ricevo ed inoltro: Dear colleague, we hope that you are in good health.You have registered for the conference "Random Matrices and Their Applications" (RMTA) which was supposed to take place in New York, May 25-29 2020. Due to the Covid-19 outbreak, the conference will be reorganized online. You can check the tentative schedule on the new website: https://www.ceremade.dauphine.fr/dokuwiki/mega:e-rmta-2020 <https://slack-redir.net/link?url=https%3A%2F%2Fwww.ceremade.dauphine.fr%2Fd…> We apologize for those of you who were supposed to present a poster: the poster session has been cancelled.Meanwhile, if you are interested to participate to the online RMTA conference, please register on the new website. Registration is free but mandatory to get the access details. We are looking forward to meeting you online!Best regards,Paul Bourgade, Djalil Chafaï, Alice Guionnet, Jamal Najim.

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COFUND: vacancies for PhD positions
by Matteo Quattropani 14 May '20

14 May '20

Ricevo ed inoltro. MQ 14 PhD Positions in Stochastics and Algorithmics in NETWORKS (the Netherlands) The NETWORKS project is a collaboration of world-leading researchers from four institutions in The Netherlands: TU Eindhoven <https://eur04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.youtu…>, University of Amsterdam <https://eur04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fyoutu.be%…>, Leiden University <https://eur04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.youtu…> and the Centrum Wiskunde & Informatica (CWI) <https://eur04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.youtu…>. Research in NETWORKS focuses on stochastics and algorithmics for network problems. NETWORKS offers a highly stimulating research environment and an extensive training program for PhD students. Recently NETWORKS was awarded a COFUND grant the Marie Skłodowska-Curie Actions, funded by the European Commission. The grant allows NETWORKS to expand its activities by opening positions for an additional 14 PhD students. As a NETWORKS-COFUND PhD student you can define your own PhD project in one of the research areas mentioned above, in collaboration with your NETWORKS supervisors. Application deadline 31 May 2020 Contract full time employment contract for 4 years Salary indication from €2.325 to €2.972 in 4 years Location The Netherlands (Amsterdam, Eindhoven, Leiden) Are you interested in the stochastics and algorithmics behind network problems? And would you like to be part of this project with its many activities? Then go to https://www.thenetworkcenter.nl/Open-Positions/openposition/29/14-PhD-Posit… <https://eur04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.thene…> On this website you can find an extensive information package about these positions, including further details about the application procedure.

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Bando dottorato congiunto Politecnico di Torino, Università di Torino e Indam (con link)
by Enrico Bibbona 14 May '20

14 May '20

Cari colleghi, vi chiedo di far circolare la notizia che il Politecnico di Torino, congiuntamente con L'Università di Torino e l'Indam offre 8 posizioni di dottorato. La domanda deve pervenire entro il 30 Aprile. http://dottorato.polito.it/en/call_for_applications Applicazioni di studenti interessati alla probabilità e alla statistica sono naturalmente benvenute. Cordiali saluti, Enrico Enrico Bibbona Associate Professor of Statistics Probability, Statistics and Optimization group Department of Mathematical Sciences "G. L Lagrange" Politecnico di Torino

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Probability Webminar: Saeda Marello (University of Bonn) [Padova 22/05, 11.00]
by alessandra bianchi 13 May '20

13 May '20

Dear Colleagues, We would like to invite you to the following Probability seminar that will take place on May 22 at 11 by the zoom platform. ________________________________________________________ Speaker: Saeda Marello (University of Bonn) Title: Metastability for the randomly dilute Curie-Weiss model with Glauber dynamics". 22 MAY (Friday) - 11:00 - zoom link: TBA The link and password to access the seminar will be available the day of the seminar at the following webpage https://www.math.unipd.it/news/metastability-for-the-randomly-dilute-curie-… Abstract: The Curie-Weiss model (CW) is a classical model of a ferromagnetic spin system in which all spins interact with each other, namely the interaction graph is complete. The randomly dilute Curie-Weiss model (RDCW) is a generalisation of the CW in which the deterministic interaction between pairs of spins is replaced by iid random coefficients. It can be also viewed as an Ising model on a random graph. We will show results in the case where the interaction coefficients are iid Bernoulli random variables with fixed parameter p, i.e. the interaction graph is an Erdős–Rényi random graph. After giving an introduction on metastability and on the well known results for the CW, we will focus on how the mean metastable hitting time in the RDCW can be approximated by that of the CW, asymptotically as the system size grows. The main methods we used are potential theoretic approach to metastability and concentration of measure inequalities. Based on joint work with Anton Bovier and Elena Pulvirenti. -- Alessandra Bianchi Dip. di Matematica Università di Padova Via Trieste, 63 - 35121 Padova, Italy phone: +39 049 827 14 06 fax: +39 049 827 14 28 e-mail: bianchi(a)math.unipd.it http://www.math.unipd.it/~bianchi/

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Call for Expression of Interest: PhD in probability theory Göttingen-Strasbourg
by Vlada Limic 13 May '20

13 May '20

Dear colleague, This is to announce an opportunity for doctoral studies in probability theory starting Fall 2020, co-mentored by Anja Sturm (Göttingen) and Vlada Limic (Strasbourg). The research topics are in theoretical probability, more precisely in the area of near-critical random graphs and related processes. Interested candidates with strong mathematics research potential are encouraged to contact us, preferably by email, A. Sturm and V. Limic http://www.stochastik.math.uni-goettingen.de/~asturm/ https://irma.math.unistra.fr/~limic/ -- Kiva.org - Loans That Change Lives

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Fwd: Online Open Probability School is starting next week
by Faggionato, Alessandra 12 May '20

12 May '20

Buongiorno, inoltro con piacere l'annuncio per una scuola di probabilità online. Saluti Alessandra ---------- Forwarded message --------- Da: Omer Angel <angel(a)math.ubc.ca> Date: mar 12 mag 2020 alle ore 06:17 Subject: Online Open Probability School is starting next week To: <faggiona(a)mat.uniroma1.it> Dear Alessandra, Our apologies if you receive multiple versions of this message. This is a second general announcement of OOPS: the Online Open Probability School, which will start next week (May 18), and will continue through most of the summer (https://www.math.ubc.ca/Links/OOPS) The school will feature a sequence of mini-courses on diverse topics in probability and related topics. All courses will take place online, and are open to all interested participants. Most courses will consist of three 1-hour lectures, though some will have longer lectures. Some courses will be accompanied by an introductory lecture or short research talks on topics related to the course. For information on these and on any suggested readings related to the courses please visit the above website. Please advertise OOPS to anyone who may be interested in the courses. They may also join our mailing list at https://mailman-mail5.webfaction.com/listinfo/oops . The schedule for the first few weeks can be found on the website. Details about the first three mini-courses appear below. 1. Date and Time: May 18,19,21, 16:00 (UTC) Speaker: Jean-Christoph Mourrat Subject: Rank-one matrix estimation and Hamilton-Jacobi equations 2. Date and time: May 25,27,28, 16:00 (UTC) Speaker: Gady Kozma Subject: Critical and near-critical percolation 3. Date and time: June 1,2,4, 16:00 (UTC) Speaker: Nina Gantert Subject: Branching random walks: some recent results and open questions Please don't hesitate to contact any of us with questions, suggestions or ideas. Best wishes, Omer, On behalf of the organizers: Louigi Addario-Berry (louigi.addario(a)mcgill.ca) Omer Angel (angel(a)math.ubc.ca) Alex Fribergh (fribergh(a)dms.umontreal.ca) Sarai Alma Hernandez Torres (saraiht(a)math.ubc.ca) Thomas Hughes (hughes(a)math.ubc.ca) Mathav Murugan (mathav(a)math.ubc.ca) Edwin Perkins (perkins(a)math.ubc.ca) Lea Popovic (lea.popovic(a)concordia.ca) -- ************************************************* Prof. Alessandra Faggionato http://www1.mat.uniroma1.it/~faggionato/ Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome Office 5, Phone (0039) 06 49913252 *************************************************

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bando di selezione al Center for Analysis Decisions and Society
by Antonio DI CRESCENZO 11 May '20

11 May '20

Cari colleghi, il Center for Analysis Decisions and Society, centro di ricerca congiunto di Human Technopole e del Politecnico di Milano, ha pubblicato un bando per la selezione di Group Leader. Trovate il bando qui: https://www.humantechnopole.it/en/join-us?p_p_id=JobViewer_INSTANCE_axOoepe… <https://www.humantechnopole.it/en/join-us?p_p_id=JobViewer_INSTANCE_axOoepe…> Potete pubblicizzare il bando ai vostri contatti potenzialmente interessati. Cordiali saluti, Antonio Di Crescenzo

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Webinar CASTILLO
by Pierpaolo De Blasi 08 May '20

08 May '20

WEBINARS IN STATISTICS @ COLLEGIO CARLO ALBERTO <https://www.carloalberto.org/research/webinars/> Venerdì 15 Maggio 2020, alle ore 12:00, si terrà il seguente webinar: ------------------------------------------------ Ismael CASTILLO (Sorbonne Université Paris) *Multiscale analysis of Bayesian CART* Abstract: This work affords new insights about Bayesian CART in the context of structured wavelet shrinkage. We show that practically used Bayesian CART priors lead to adaptive rate-minimax posterior concentration in the supremum norm in Gaussian white noise, performing optimally up to a logarithmic factor. To further explore the benefits of structured shrinkage, we propose the g-prior for trees, which departs from the typical wavelet product priors by harnessing correlation induced by the tree topology. Building on supremum norm adaptation, an adaptive nonparametric Bernstein–von Mises theorem for Bayesian CART is derived using multiscale techniques. For the fundamental goal of uncertainty quantification, we construct adaptive confidence bands with uniform coverage for the regression function under self-similarity. (joint work with Veronika Rockova, University of Chicago). ------------------------------------------------ Chiunque volesse collegarsi al webinar è pregato di inviare una email entro mercoledi 13 Maggio a pierpaolo.deblasi(a)unito.it Il webinar è organizzato dalla "de Castro" Statistics Initiative www.carloalberto.org/stats in collaborazione con il Collegio Carlo Alberto. Cordiali saluti, Pierpaolo De Blasi --- University of Torino & Collegio Carlo Alberto carloalberto.org/pdeblasi <https://sites.google.com/a/carloalberto.org/pdeblasi/>

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May 18th 2020: Prof. Giorgio Ferrari 's online seminar at University of L'Aquila
by Fabio Antonelli 08 May '20

08 May '20

------------------------------------------------ UNIVAQ RANDOM TALKS ________________________________ Online talks on Probability and Applications at DISIM - UNIVERSITÁ DI L'AQUILA Using Zoom Videoconference system Monday 18th 2:30 p.m. Prof. Giorgio Ferrari - Bielefeld University TITLE: Singular Control of the Drift of a Brownian System Everybody is welcome, please subscribe by the following form The day of the seminar, participants will receive an invitation by e-mail [https://lh5.googleusercontent.com/CWhLsT4lqNWzIjVe3mEN_7Iq4wxE9g204khy6mYxf…]<https://docs.google.com/forms/d/e/1FAIpQLSclukp_QZeujS15nbL3IvtRKGJWvHkx-E5…> UNIVAQ RANDOM TALKS 3 - UNIVERSITÁ DI L'AQUILA<https://docs.google.com/forms/d/e/1FAIpQLSclukp_QZeujS15nbL3IvtRKGJWvHkx-E5…> ONLINE May 18th 2020 - 2:30 p.m. Prof. Giorgio Ferrari - Bielefeld University: Singular Control of the Drift of a Brownian System docs.google.com No need to subscribe, if, in a previous form, you asked to be always included ABSTRACT: Consider a standard Brownian motion whose drift can be increased or decreased in a possibly singular manner. The objective is to minimize an expected functional involving the time-integral of a running cost and the proportional costs of adjusting the drift. The resulting two-dimensional degenerate singular stochastic control problem with interconnected dynamics is solved by combining techniques of viscosity theory and free boundary problems. We provide a detailed description of the problem's value function and of the geometry of the state space, which is split into three regions by two monotone curves. Our main result shows that those curves are continuously differentiable with locally Lipschitz derivative and solve a system of nonlinear ordinary differential equations. The optimal control is also constructed (weakly) under further specifications of the model. This talk is based on a joint work with Salvatore Federico (University of Siena) and Patrick Schuhmann (Bielefeld University). --------------------------------- Fabio Antonelli DISIM - Università di L'Aquila

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