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Annuncio seminario
by Piccioni, Mauro 24 Nov '16

24 Nov '16

*Dipartimento di Matematica, Sapienza Università di Roma * *Martedì 29 novembre* * Ore 14:00, Aula di Consiglio* * Seminario di Probabilità e Statistica Matematica* *Pietro Caputo, Dipartimento di Matematica, Università di Roma Tre* *Titolo: Random walk on sparse random directed graphs* *Abstract: **A random walk on a finite graph exhibits cutoff if its distance from stationarity remains close to the initial value for a certain number of iterations and then abruptly drops to near zero on a much shorter time scale. Originally discovered in the context of card shuffling by Aldous and Diaconis in 1986, this remarkable phenomenon is now rigorously established for many reversible chains. Here we consider the non-reversible case of random walks on sparse random directed graphs, for which even the stationary distribution is far from being understood. We establish the cutoff phenomenon, determine its time window and prove that the cutoff profile approaches a universal gaussian shape. Moreover, we determine an explicit recursive equation characterizing the stationary distribution. This talk is based on joint work with Charles Bordenave and Justin Salez.* *Tutti gli interessati sono invitati a partecipare.* *Per qualsiasi richiesta di informazioni rivolgersi a **piccioni(a)mat.uniroma1.it <piccioni(a)mat.uniroma1.it>.*

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Annuncio di seminario
by Piccioni, Mauro 24 Nov '16

24 Nov '16

*Dipartimento di Matematica, Sapienza Università di Roma * *Martedì 29 novembre* * Ore 14:00, Aula di Consiglio* * Seminario di Probabilità e Statistica Matematica* *Pietro Caputo, Dipartimento di Matematica, Università di Roma Tre* *Titolo: Random walk on sparse random directed graphs* *Abstract: **A random walk on a finite graph exhibits cutoff if its distance from stationarity remains close to the initial value for a certain number of iterations and then abruptly drops to near zero on a much shorter time scale. Originally discovered in the context of card shuffling by Aldous and Diaconis in 1986, this remarkable phenomenon is now rigorously established for many reversible chains. Here we consider the non-reversible case of random walks on sparse random directed graphs, for which even the stationary distribution is far from being understood. We establish the cutoff phenomenon, determine its time window and prove that the cutoff profile approaches a universal gaussian shape. Moreover, we determine an explicit recursive equation characterizing the stationary distribution. This talk is based on joint work with Charles Bordenave and Justin Salez.* *Tutti gli interessati sono invitati a partecipare.* *Per qualsiasi richiesta di informazione scrivere a piccioni(a)mat.uniroma1.it*

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Posto da associato per esterni bandito dall'Università di Udine (fwd)
by Tiziano Vargiolu 23 Nov '16

23 Nov '16

---------- Forwarded message ---------- Date: Wed, 23 Nov 2016 15:26:15 +0100 From: Marcellino Gaudenzi <gaudenzi2(a)gmail.com> To: Tiziano Vargiolu <vargiolu(a)math.unipd.it> Subject: Posto da associato per esterni bandito dall'Universit? di Udine Caro Tiziano, ti chiedo gentilmente di rendere noto che l'Universit? di Udine ha bandito un posto da professore associato per il settore SECS-S/06 riservato a candidati esterni all'Universit? di Udine (possono partecipare solo candidati che nel corso del triennio precedente la scadenza del bando non hanno prestato servizio, n? hanno ottenuto assegni di ricerca dell'Universit? di Udine). Allego il link al bando http://web.uniud.it/ateneo/normativa/albo_ufficiale/758%20-%202016/file Grazie, cari saluti Marcellino Gaudenzi

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Seminario di Tiziano De Angelis presso la Luiss, Mercoledi' 23 Novembre ore 18 e 10
by Fausto Gozzi 23 Nov '16

23 Nov '16

Luiss, Roma, Dipartimento di Economia e Finanza Viale Romania 32, Roma Mercoledi' 23 Novembre ore 18.10 aula 106 b Seminario di Tiziano De Angelis (University of Leeds) TITLE: The dividend problem with a finite horizon ABSTRACT: We characterize the value function of the optimal dividend problem with a finite time horizon as the unique classical solution of a suitable Hamilton-Jacobi-Bellman equation. The optimal dividend strategy is realized by a Skorokhod reflection of the fund's value at a time-dependent optimal boundary. Our results are obtained by establishing for the first time a new connection between singular control problems with an absorbing boundary and optimal stopping problems on a diffusion reflected at an elastic boundary. Link al paper <http://arxiv.org/abs/1609.01655>http://arxiv.org/abs/1609.01655 Tutti gli interessati sono invitati a partecipare. Per qualsiasi richiesta di informazione scrivere a faustogozziluiss(a)gmail.com Fausto Gozzi Fausto Gozzi Dipartimento di Economia e Finanza LUISS - Guido Carli Viale Romania, 32 00197 Roma Italy tel 06.85225723 (office) FAX 06.86506513 e-mail: fgozzi(a)luiss.it webpage: http://docenti.luiss.it/gozzi/ old addresses: Fausto Gozzi Dipartimento di Matematica per le Decisioni Economiche Finanziarie e Assicurative Facolta' di Economia Universita' di Roma La Sapienza via del Castro Laurenziano 9 00161 Roma Italy tel 06/49766275 (office) FAX 06/49766765 and also Fausto Gozzi Dipartimento di Matematica Universita' di Pisa via Filippo Buonarroti n. 2 56127 Pisa Italy tel 050/2213270 FAX 050/2213224 e-mail: GOZZI(a)DM.UNIPI.IT

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Deadlines Reminder -- First Italian Meeting on Probability and Mathematical Stastistics
by Federico Polito 22 Nov '16

22 Nov '16

Dear Colleagues, This is a reminder of the upcoming deadlines of the "First Italian Meeting on Probability and Mathematical Stastistics" which will be held in Torino from June 19-th to 22-nd, 2017: - Deadline for submission of Contributed Sessions: *December 15, 2016* - Deadline for request of financial support: *December 15, 2016* - Deadline for abstract submission (contributed talks/posters/contributed sessions talks): January 31, 2017 - Deadline for registration: March 31, 2017 More information on the Meeting's website at http://calvino.polito.it/~probstat/torino2017 On behalf of the organizing Committee, Federico Polito -- Federico Polito Department of Mathematics University of Torino Via Carlo Alberto, 10 10123, Torino, Italy Email: federico.polito(a)unito.it Tel: +39 011 6702937 Web: www.federicopolito.it

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EFI2, December 5-6, Padova, Italy: deadline approaching for registration
by Tiziano Vargiolu 22 Nov '16

22 Nov '16

(sorry for cross-postings) Dear all, we wish to remind you that the deadline for the registration as attendee to the workshop Energy Finance Italia (Padova, Italy, December 5-6, 2016) is approaching (November, 25). You can find more details on the workshop's website: http://events.math.unipd.it/efi2/ See you in Padova! 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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PhD opportunities in Warwick (in Statistics, Probability, Mathematical Finance)
by Elisabetta Candellero 21 Nov '16

21 Nov '16

Dear all, The University of Warwick is advertising several new PhD opportunities in the fields of *Statistics*, *Probability* and *Mathematical Finance*, with funding available *especially* for UK and EU students. PhD applications are considered on a rolling basis, but the deadline to apply for *funding* is early 2017 (see http://www2.warwick.ac.uk/fac/sci/statistics/postgrad/research/fees-funding/ for details). More precise information can be found at: http://www2.warwick.ac.uk/fac/sci/statistics/postgrad/research. Please forward this message to all potentially interested students. Thank you very much. Elisabetta Candellero

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Workshop on Quantitative Finance 2017 - deadline approaching (fwd)
by Tiziano Vargiolu 19 Nov '16

19 Nov '16

---------- Forwarded message ---------- Date: Sat, 19 Nov 2016 13:48:56 +0100 From: Fabio Bellini <fabio.bellini(a)unimib.it> To: fabio.bellini(a)unimib.it Subject: Workshop on Quantitative Finance 2017 - deadline approaching Dear colleagues, as you know the traditional end-of-January Workshop on Quantitative Finance will be held this year at the University of Milano-Bicocca. All the information is available on the official website https://sites.google.com/site/qfw2017/ We have funding for accommodation of foreign PhD students, please send your application with a full CV to qfw2017(a)unimib.it. We also strongly encourage participation from the financial industry; the Workshop will be closed by a round table on Blockchain Finance. Participation to the conference and to the round table is free, but registration on the official website is mandatory. The deadline for submitting the full paper or an extended abstract is 1/12/2016. Notification of acceptance will be given by 23/12/2016. The full paper for the discussant will have to be provided in any case by 8/1/2017. Looking forward to seeing you in Milan! Prof. Fabio Bellini Department of Statistics and Quantitative Methods University of Milano-Bicocca Via Bicocca degli Arcimboldi 8, 20126 Milano 0039-2-64483119 http://www.economia.unimib.it/bellini http://scholar.google.it/citations?user=P61L8P4AAAAJ&hl=it

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postdoc position available on probabilistic approaches in non-equilibrium statistical mechanics
by Francesco Caravenna 18 Nov '16

18 Nov '16

Ricevo e inoltro. > Da: Fabio Toninelli <toninelli(a)math.univ-lyon1.fr> > Oggetto: postdoc position available on probabilistic approaches in non-equilibrium statistical mechanics > Data: 18 novembre 2016 08:53:17 GMT+01:00 > > Dear Colleague, > > A post-doctoral position is available from April 2017 or later within our research group on probabilistic approaches in non-equilibrium statistical mechanics: > > http://math.univ-lyon1.fr/homes-www/toninelli/LSD.html > > The duration is one year, with possible extension for another year. The post-doctoral fellow will be working on one of the following topics: > > - Macroscopic transport phenomena > - Slow and disordered dynamics > - Interface dynamics and KPZ equation > > Depending on the topic, the research will be conducted in one of the institutes associated to our research group (see the web page). > The post-doctoral fellow will receive a net salary of 2400 euros per month and benefit from health insurance. > > Applications with a curriculum vitae and a brief research statement should be sent by the candidate before January 15, 2017 to Stefano Olla (olla(a)ceremade.dauphine.fr) > The candidate will require at least one recommendation letter to be sent directly to Stefano Olla. > > We would be grateful if you could publicize this offer among the PhD graduates of your department. > > Yours sincerely > > S. Olla, T. Bodineau, F. Toninelli. > —————————————————- > > -- > Fabio Toninelli > Institut Camille Jordan, Universite' Lyon 1 > 43 bd du 11 novembre 1918 > 69622 Villeurbanne Cedex, France > > Office 105, tel: +33 (0) 4 26 23 44 41

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Seminario SCARPA
by Matteo Ruggiero 18 Nov '16

18 Nov '16

******************************************************************* STATISTICS SEMINARS @ COLLEGIO CARLO ALBERTO ******************************************************************* Venerdi 25 Novembre 2016 alle ore 12:00, presso l’Aula Rossa del Collegio Carlo Alberto, Moncalieri (TO), si terra' il seguente seminario: Bruno SCARPA (Università di Padova) BAYESIAN MODELLING OF NETWORKS IN BUSINESS INTELLIGENCE PROBLEMS Complex network data problems are increasingly common in many fields of application. Our motivation is drawn from strategic marketing studies monitoring customer choices of specific products, along with co-subscription networks encoding multiple purchasing behavior. Data are available for several agencies within the same insurance company, and our goal is to efficently exploit co-subscription networks to inform targeted advertising of cross-sell strategies to currently mono-product customers. We address this goal by developing a Bayesian hierarchical model, which clusters agencies according to common mono-product customer choices and co-subscription networks. Within each cluster, we efficiently model customer behavior via a cluster-dependent mixture of latent eigenmodels. This formulation provides key information on mono-product customer choices and multiple purchasing behavior within each cluster, informing targeted cross-sell strategies. We develop simple algorithms for tractable inference, and assess performance in simulations and an application to business intelligence. Tutti gli interessati sono invitati a partecipare. Il seminario e' organizzato dalla "de Castro" Statistics Initiative (http://www.carloalberto.org/stats <http://www.carloalberto.org/stats>) in collaborazione con il Collegio Carlo Alberto. Cordiali saluti, Matteo Ruggiero --- Matteo Ruggiero University of Torino and Collegio Carlo Alberto www.matteoruggiero.it

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