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Seminario di Michele Aleandri alla Sapienza
by Faggionato, Alessandra 12 May '22

12 May '22

Buongiorno sotto l'annuncio del seminario di Michele Aleandri alla Sapienza. Grazie Saluti Alessandra %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Mercoledì 18 Maggio, ore 16, Sala di Consiglio, Sapienza Università di Roma SPEAKER: Michele Aleandri (Sapienza Università di Roma) TITOLO: Opinion dynamics: conformist and nonconformist interacting agents ABSTRACT: We study two models of binary decisions in a connected network of interacting agents. Individual decisions are determined by social influence, coming from direct interactions with neighbours, and a group level pressure that accounts for social environment. We study the convergence of the mean field variables associated to the processes as the number of agents goes to infinity and we show that propagation of chaos occurs. In the first model, [2], we have a family of conformist or nonconformist agents that interact with each other. When the number of agents is large but fixed, we study the amount of time spent by the mean field variables associated with the process around the stable points of the macroscopic dynamics. In a nonconformist environment, there is a persistent disordered phase where no majority is formed: We show how in this case the introduction of a delay mechanism in the agent’s detection of the global average choice may drastically change this scenario, giving rise to a coordinated self sustained periodic behavior. In the second model, [1], the population is divided into two social groups, each one characterized by its attitude with respect to the other. Agents of the same group interact with each other, while the other group exerts on them a social influence, that may also be null or even negative. We focus in particular on models with Lotka-Volterra type interactions, i.e., models with conformist vs. nonconformist groups. For these models, although the microscopic system is driven a.s. to consensus within each group, a periodic behaviour arises in the macroscopic scale. In order to describe fluctuations between the limiting periodic orbits, we identify a slow variable in the microscopic system and, through an averaging principle, we find a diffusion which describes the macroscopic dynamics of such variable on a larger time scale. [1] Aleandri, M., Minelli, I.G. Opinion dynamics with Lotka-Volterra type of interactions. Electronic Journal of Probability, 24(2019), no.122, 1-31. [2] Aleandri, M., Minelli, I.G. Delay-Induced Periodic Behaviour in Competitive Populations. Journal of Statistical Physics (2021) 186:6 -- ************************************************* 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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Seminar by Luca Sitzia (UniCredit) in Padova
by Giorgia Callegaro 11 May '22

11 May '22

Dear all, we are happy to announce the following seminar of the cycle "Probability and Finance Seminars" of the Mathematics Department in Padova, which will be given in presence (Torre Archimede, Padova, see below) and online (Via Zoom, see below): * *Speaker*: Luca Sitzia (UniCredit) * *Title*: *A neural network approach for the estimation of mortgage prepayment rates * * *Where: *sala riunioni 701 Torre Archimede, Padova ** When*: 27th May 2022, 4.30 pm. For more details and to get the Zoom link please visit the webpage: https://www.math.unipd.it/~bianchi/seminari/ Hope to see you there, best, Giorgia Callegaro, Marco Formentin and Alessandra Bianchi -- Giorgia Callegaro Associate Professor Department of Mathematics - University of Padova Via Trieste 63 , I-35121 Padova - ITALY Tel: +39-0498271481 Fax: +39-0498271499 E-Mail: gcallega(a)math.unipd.it <https://webmail.math.unipd.it/horde3/imp/message.php?mailbox=Sent&index=598#> Personal web-page: https://sites.google.com/site/giogiocallegaro/Home

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Fwd: Workshop "Junior Female Researchers in Probability", Berlin, Oct 5-7
by Luisa Andreis 11 May '22

11 May '22

Care colleghe e cari colleghi, Vi inoltro l’annuncio per del workshop "Junior Female Researchers in Probability", che si terrà a Berlino ad ottobre e vi prego di diffonderlo con chiunque crediate possa essere interessata. Cordiali saluti, Luisa Andreis —————————————————— Dear colleagues, we would like to draw your attention to the fourth workshop for "Junior female researchers in probability”, 5-7 October 2022. The aim of this workshop is to promote young female researchers by giving them an opportunity to present their own work, build a network and hear distinguished mathematicians who can inspire them to pursue a fulfilling career in probability. Keynote speakers: Sylvie Méléard (École Polytechnique) Silke Rolles (TU Munich) Invited speakers: Alessandra Bianchi (Padova) Lisa Hartung (Mainz) Alexandra Neamtu (Konstanz) Kim Weston (Rutgers) The workshop is planned as an in-person event in Berlin. We warmly invite those who identify as female to submit abstracts for contributed talks, and apply for financial support for traveling to Berlin in case we can have a hybrid event. However, please be aware that being unable to travel should not restrain from submitting an abstract. There are special travel grants for female master students interested in gaining some insight into research and getting in touch with researchers. Of course everybody is very welcome to participate, but presentations and financial support are reserved for female participants. Deadline for submission of abstracts and funding requests: June 30, 2021. Please pass this information on to interested master students, PhD students and postdocs as well as your colleagues! More details can be found on our website: https://www.google.com/url?q=https://www.wias-berlin.de/workshops/JFRP22/&s… <https://www.google.com/url?q=https://www.wias-berlin.de/workshops/JFRP22/&s…> Best regards, Peter Bank, Dörte Kreher, Laura Körber, Helena Kremp, Alexandra Quitmann, Isabell Vorkastner, Weile Weng, and Maite Wilke-Berenguer

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Seminario Martin Friesen, domani ore 16:00
by Michele Coghi 11 May '22

11 May '22

Cari colleghi, vi annunciamo il prossimo talk nel ciclo "Trento Probability Seminars" *Asymptotics of stochastic Volterra equations* *Luogo:* l'evento si terrà in presenza in Aula Seminari "-1" a Povo0 e per via telematica attraverso collegamento alla piattaforma Zoom. Per partecipare sarà necessario collegarsi al link seguente ed inserire i codici di accesso (da condividere solo con contatti fidati): https://unitn.zoom.us/j/86014416487 Meeting ID: 860 1441 6487 Passcode: 809071 *Data:* Giovedì 12 maggio *Ore:* 16:00 *Relatore:* - *Martin Friesen* (Dublin City University) *Abstract: *In this talk, we review recent results on the long-time behavior, that is limiting distributions and stationary processes, for stochastic Volterra equations in finite and infinite dimensions. These include the Volterra Ornstein-Uhlenbeck process, affine processes, and Volterra stochastic partial differential equations. Saluti, Michele

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Deadline approaching: A day on random graphs
by mic sal 11 May '22

11 May '22

Dear all, this is to remind you that the deadline for the (free but compulsory) registration to the workshop "A day on Random Graphs" is on the 15th of May. Should you miss the deadline, you can write to salvi(a)mat.uniroma2.it to check if there is still place available. The workshop will take place at Università di Tor Vergata on the 30th of May (see poster in attachment) and is part of the Excellence Program Math@TOV. The invited speakers are Luca Avena (Leiden University) Afonso Bandeira (ETH Zürich) Luca Becchetti (La Sapienza) Julia Komjathy (TU Delft) Luca Trevisan (Bocconi) For more information see http://www.mat.uniroma2.it/~rds/graphs.php . The organizers, Andrea Clementi, Domenico Marinucci, Michele Salvi, Stefano Vigogna

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Seminar in Pisa: Darrick Lee
by Francesco Grotto 10 May '22

10 May '22

Dear Colleagues, we would like to invite you to the following seminar by Darrick Lee (EPFL) to be held tomorrow (May 10th) at Dipartimento di Matematica in Pisa and online via Google Meets. The organizers, A. Agazzi and F. Grotto -------------------------------------------- Location: Sala Seminari, Dipartimento di Matematica, Pisa Google Meet Link: https://meet.google.com/gji-phwo-vbg Time: May 10th, 2022, 14:00-15:00 CET Speaker: Darrick Lee (EPFL) Title: Mapping Space Signatures Abstract: The path signature is a foundational tool in the theory of rough paths. In this talk, we introduce the mapping space signature, a generalization of the path signature to maps from higher dimensional cubical domains, which is motivated by the topological perspective of K. T. Chen. We show that the mapping space signature shares many of the analytic and algebraic properties of the path signature; in particular it is universal and characteristic with respect to a certain equivalence relation on cubical maps. This is joint work with Chad Giusti, Vidit Nanda, and Harald Oberhauser.

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Workshop on Chemical Reaction Networks at Politecnico
by Daniele Cappelletti 09 May '22

09 May '22

Dear all, As announced in a previous email, Politecnico di Torino is organizing the second edition of the *Workshop on Chemical Reaction Networks*, 6-8 July, 2022, Torino, Italy. We are writing to inform you that *the deadline for* *the registration is extended to May 22nd*. You can find more info on the topics covered and on the logistics of the workshop at https://areeweb.polito.it/disma-excellence/events_2022/CRNs_workshop <https://areeweb.polito.it/disma-excellence/events_2022/CRNs_workshop/index.…> Sorry for cross-posting and please forward this info to all potentially interested people you may know, especially to the youngest. With kindest regards, the organizers Daniele Cappelletti Enrico Bibbona Paola Siri

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Seminar by M. Burzoni in Verona (hybrid)
by Alessandro Gnoatto 09 May '22

09 May '22

Matteo Burzoni (University of Milan) will give a talk at the Department of Economics – University of Verona. Date: 11/05/2022 @ 12:00 (Rome Time) Title: On adjusted risk measures Abstract: We introduce different ways of adjusting classical risk measures in different contexts. We mainly discuss the properties of a new class of convex risk measures that robustifies Expected Shortfall by simultaneously controlling the expected losses associated with different portions of the tail distribution. The key element is a benchmark risk profile g which allows, at the same time, to tailor the risk assessment to the specific application of interest. The resulting risk measure is intimately connected with second-order stochastic dominance. A second way of adjusting and robustifying risk measures is presented in a systemic risk framework which is not based on any probabilistic assumption. If you would like to attend via Zoom, please register at the following link, we will send you the login details: https://docs.google.com/forms/d/e/1FAIpQLSeE2_EoaT3z70C7nUzokfeg5PTb5dyDXxZ… <https://docs.google.com/forms/d/e/1FAIpQLSeE2_EoaT3z70C7nUzokfeg5PTb5dyDXxZ…> -- Alessandro Gnoatto Dipartimento di Scienze Economiche Università degli Studi di Verona Via Cantarane 24 37129, Verona, Italy Room 1.05 Tel: +39 045 802 8537 Homepage: www.alessandrognoatto.com E-mail: alessandro.gnoatto(a)univr.it -------------------------------------------------- View my research on my SSRN Author page: http://ssrn.com/author=1615989 --------------------------------------------------

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PhD position and professor position
by Enrico Priola 06 May '22

06 May '22

Segnalo un messaggio di Markus Riedle (King's College London) Cari saluti Enrico Priola %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Dear Enrico, I'm writing you to let you know that I am currently looking for a new PhD student. It is a joint position with TU Dresden in Germany: https://www.verw.tu-dresden.de/StellAus/download.asp?file=05-2022\Behme_WIM… If you know a good candidate for this position, please encourage them to apply. On the other side of the career spectrum, our department is currently hiring a professor in probability theory. If you know somebody appropriate, please forward the advert or ask them to get in contact with me for any further questions: https://jobs.kcl.ac.uk/gb/en/job/044648/Professor-Reader-in-Probability Many thanks, Markus %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -- Enrico Priola Dipartimento di Matematica, Università di Pavia Via Adolfo Ferrata 5, 27100 Pavia tel +39 0382 985639

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Summer School Causal Inference - Trento, 11-15 July 2022
by Claudio Agostinelli 06 May '22

06 May '22

Registration is open for a summer school in *Causal inference* at the university of Trento this 11-15 July! More info at: http://datascience.maths.unitn.it/events/ci2022/ Deadline for registration: 15 June Hope to see you there! Veronica and Claudio

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