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de Finetti risk seminar
by Emanuela Rosazza 21 Mar '19

21 Mar '19

Gentile Prof. Cambini, Le sarei grata se potesse inoltrare il seguente avviso di messaggio. La ringrazio anticipatamente e saluto cordialmente, Emanuela --- On behalf of the Scientific Committee of the de Finetti Risk Seminars, we are glad to invite you to participate at the following Lecture A mathematical model of learning reward uncertainty in the brain Rafal Bogacz Nuffield Department of Clinical Neurosciences, University of Oxford Abstract: To maximise their chances for survival, humans and animals need to base their decisions not only on the average consequences of chosen actions, but also on the variability of the rewards resulting from these actions. For example, when ones food reserves are depleted, one should prefer to forage in an area where food is guaranteed, rather than an area where the amount of food is higher on average but variable, thus avoiding the risk of starvation. To implement such policies, the brain needs to be able to learn about variability of rewards resulting from taking different actions. This talk will present a simple mathematical model describing how such learning may be implemented in the brain. The models suggests how the information about reward uncertainty is used by the brain to make decisions that not only maximize expected rewards but also take risks into account. The models is consistent with a wide range of experimental data from neuroscience. The talk will also include a discussion of the relationship between the model and the probability weighting functions from the prospect theory. LOCATION: The seminar will be held on Wednesday, March 27, at 15.00 at room 3-E4-SR03, Bocconi University, Via Rontgen 1, 3rd floor, Milano. A refreshment will be offered at 14.45. Scientific Committee: Prof. Simone Cerreia-Vioglio (Univ. Bocconi) Prof. Marco Frittelli (Univ. degli Studi di Milano) Prof. Fabio Maccheroni (Univ. Bocconi) Prof. Massimo Marinacci (Univ. Bocconi) Prof. Emanuela Rosazza Gianin (Univ. Milano-Bicocca) Dott. Marco Maggis (Univ. degli Studi di Milano) ******************************************************************************************* Emanuela Rosazza Gianin Dipartimento di Statistica e Metodi Quantitativi Università di Milano-Bicocca Edificio U7 – 4° Piano Via Bicocca degli Arcimboldi, 8 20126 Milano Tel. 02 64483208 Fax. 02 64483105 e-mail: emanuela.rosazza1(a)unimib.it *******************************************************************************************

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UCL-Rome Workshop on Stochastic and PDE Methods in Finance and Economics, 20-22 May 2019
by Germano, Guido 20 Mar '19

20 Mar '19

Cari colleghi, annuncio un workshop che si terrà alla LUISS dal 20 al 22 maggio. Cordiali saluti Guido Germano ====== UCL-Rome Workshop on Stochastic and Partial Differential Equation Methods in Finance and Economics LUISS University, Rome, Italy, 20-22 May 2019 Dipartimento di Economia e Finanza, Viale Romania 32 Comprehensive information can be found on http://www.cs.ucl.ac.uk/staff/g.germano/ucl-rome_workshop.html The aim of the workshop is to bring together researchers of University College London and of various Universities in Rome who work on different areas of stochastic and PDE methods motivated by problems in economics and finance. The intended format of the workshop is, for the experienced researchers, to give a broad perspective on an area of research, discussing also current developments and, potentially, major open problems. The afternoon of the second day will be devoted to short talks by junior participants. The workshop will start in the early afternoon of the first day and end around noon of the third day. This arrangement allows participants from outside Rome to attend the whole workshop spending only two nights in the city. Participation is free of charge and open to everyone. — Dr Guido Germano www.cs.ucl.ac.uk/staff/g.germano +44 7481 388380 Associate Professor, Department of Computer Science, University College London Programme Director and Admissions Tutor, UCL MSc Computational Finance Research Associate, Systemic Risk Centre, London School of Economics

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Fwd: Announcement: 4 PhD positions in Probability Theory in Leiden
by Francesco Caravenna 19 Mar '19

19 Mar '19

Ricevo e inoltro. > Da: "Avena, L." <l.avena(a)math.leidenuniv.nl> > Oggetto: Announcement: 4 PhD positions in Probability Theory in Leiden > Data: 19 marzo 2019 17:56:45 GMT+8 > > Dear friends and colleagues, > > We are advertising four 4-year PhD positions within our probability group in Leiden. > > Project descriptions as well as the application procedure can be found at the following link: > https://www.universiteitleiden.nl/vacatures/2019/q1/19-065-phd-positions-in… <https://www.universiteitleiden.nl/vacatures/2019/q1/19-065-phd-positions-in…> > All PhD positions are linked to the NWO Gravitation Program NETWORKS: > > www.thenetworkcenter.nl <http://www.thenetworkcenter.nl/> > > I would be grateful if you would bring this announcement to the attention of potential candidates and send it to other colleagues who might be interested. > > Best regards, > Luca

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Seminario di Paolo Di Tella a Tor Vergata
by Anna Vidotto 19 Mar '19

19 Mar '19

Dear all, I would like to announce the following talk that will be held on Friday, April 5th 2019, at 4:30 PM, in Aula D’Antoni of the Department of Mathematics, University of Rome Tor Vergata, in the framework of the activities supported by the MIUR Excellence Department Project CUP E83C18000100006. Speaker: Paolo Di Tella Title: On The Weak Representation Property in Progressively Enlarged Filtrations with an Application in Exponential Utility Maximization Abstract: In this talk we show that the weak representation property of a semimartingale $X$ with respect to a filtration $\mathbb{F}$ is preserved in the progressive enlargement $\mathbb{G}$ by a random time $\tau$ avoiding $\mathbb{F}$-stopping times and such that $\mathbb{F}$ is immersed in $\mathbb{G}$. As an application of this, we can solve an exponential utility maximization problem in the enlarged filtration $\mathbb{G}$ following the dynamical approach, based on suitable BSDEs, both over the fixed-time horizon $[0,T]$, $T>0$, and over the random-time horizon $[0,T\wedge\tau]$. Kind regards --------- Anna Vidotto PostDoc Researcher Dipartimento di Matematica Università degli Studi di Roma Tor Vergata https://sites.google.com/view/annavidotto

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Quantitative Finance at Work
by Davide Erminio Pirino 18 Mar '19

18 Mar '19

Dear all, on May 2 and 3, 2019, the Department of Economics and Finance <http://economia.uniroma2.it/en/def/> and the Master of Science in Finance and Banking <http://economia.uniroma2.it/master-science/financeandbanking> of the University of Rome Tor Vergata <http://web.uniroma2.it/home/newlang/english> will host the* third edition* of Quantitative Finance at Work a workshop on the practical use of quantitative methods in Finance. Find out more about the program, the venue and the registration form at the event website <https://www.qfinatwork.com/>. Registration *is** free but required to attend to the workshop*. It will be open until the maximum number of participants is reached. The list of the speakers and some information are attached. Looking forward to seeing you in Rome “Tor Vergata”, *The Scientific Committee* Rocco Ciciretti Stefano Herzel Davide Pirino Alessandro Ramponi Sergio Scarlatti Speakers Marialena Athanasopoulou, *European Stability Mechanism. *Andrea Consiglio, Università degli Studi di Palermo. Fabio Farabullini, *Istituto per la Vigilanza sulle Assicurazioni.* Simone Freschi, *MPS Capital Services*. Tommaso Gabbriellini, *MPS Capital Services.* Fabrizio Lillo, *Università degli Studi di Bologna*. Attilio Meucci, *ARPM*. Marcello Paris, *UniCredit. *Luca Spampinato, *Bloomberg*. Valerio Sperandeo, *Mathworks*. Michele Tumminello, Università degli Studi di Palermo. Jessica Zanetti, *Morningstar*. Venue University of Rome Tor Vergata, School of Economics, Via Columbia, 2 – 00133 Rome. Date May 2 and 3, 2019. *Web*: https://www.qfinatwork.com/

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Workshop on Random Dynamical Systems and Anomalous Dynamics, Londra 20-22 Marzo 2019
by Enrico Scalas 18 Mar '19

18 Mar '19

Car* collegh*, se siete a Londra dal 20 al 22 marzo, vi puo' interessare questo workshop che si terra' all'Imperial College organizzato da Yuzuru Sato, Rainer Klages e Jeroen Lamb: http://lml.org.uk/event/workshop-on-random-dynamical-systems-and-anomalous-… Workshop aim: This workshop brings together theoretical physicists and mathematicians working on dynamical systems and stochastic processes. An emphasis is on the recent active fields of random dynamical systems and anomalous stochastic dynamics. The former refers to chaotic dynamical systems that are coupled to noise. This combination can create novel phenomena such as anomalous diffusion, stochastic bifurcations, and varieties of noise-induced phenomena. To describe them requires a new mathematical language defining objects such as random attractors, perturbed invariant measures, bifurcations, and rare event statistics. Anomalous dynamics denotes processes whose mean square displacement, unlike that of Brownian motion, grows non-linearly in time. They exhibit non-trivial properties related to non-Gaussian probability distributions, such as power-law decay of correlations, sub- or super-diffusion and ergodicity breaking. However, the emergence of such phenomena from deterministic dynamics is poorly understood. By bridging the gap between the dynamical systems and applied stochastic processes communities we aim to advance this understanding. Cordiali saluti, Enrico Scalas

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PhD positions in MODELING AND DATA SCIENCE - University of Torino
by Elvira Di Nardo 16 Mar '19

16 Mar '19

%------------------------------------------------------------------------------% The call for admission to PhD programme in MODELING AND DATA SCIENCE - University of Torino https://dottorato-mds.campusnet.unito.it/do/home.pl (Coordinator: Prof.Laura Sacerdote) is now open. %-------------------------------------------------------------------------------% We offer up to 5 PhD positions (one is reserved to candidates with international qualifications and one is reserved to the project no.9, see below) for up to 3 years. Annual amount of the PhD scholarship is € 17.500 according to DM 40/2019. This sum is subject to separate I.N.P.S. welfare contributions. Course start date is November 1st, 2019. The official language is English. The positions are assigned to specific research projects within the following list: 1. A multi-agent system (MAS) approach to model news spreading 2. A multi-agent system (MAS) modelisation of the mobility by public transport in the City of Turin 3. Quickest detection and failure time problems for industrial data 4. Machine learning in public health 5. Time changed multivariate stochastic models: calibration and fit on financial data. 6. Computable inference for hidden Markov models with orthogonal polynomial eigenstructure 7. Parallel programming models for modern applications: AI and Big Data 8. Privacy-preserving machine learning in complex domains 9. Algorithms and techniques for analyzing vast non-specialized textual corpora in order to extract complex features relevant to conceptual history and the history of argumentation. (research project linked to the scholarship funded by Dipartimento di Filosofia e Scienze dell’Educazione – excellence Department research) This list may be updated until the deadline of Call for Admission to PhD positions. Updates will be published on https://en.unito.it/postdegree/phd/modeling-and-data-science. Application fee is €50.00 for each application submitted. Candidates with international qualifications are exempted from paying the application fee. Applications must be submitted within 16th April 2019 at 12.00 (noon) Central European local time (which is also the fee mandatory deadline). Application may be integrated with additional documentation within the deadline 16th April 2019 at 12.00 (noon) Central European local time. For more details about the research projects as well as the formal application criteria, see https://en.unito.it/postdegree/phd/modeling-and-data-science The admission procedure consists in assessment of qualifications, research project and interview. The interview will include questions on applied mathematics, statistics and computer science together with a discussion on the proposed project. The interview, after prior authorization by the Commission, can be performed telematically. Schedule with information on dates and venues of entrance examinations will be published on the websites: http://en.unito.it/research/phd/phd-programmes, starting from 9th April 2019. -- %------------------------------------------------------- Elvira Di Nardo Dept. Mathematics "G. Peano" University of Torino Via Carlo Alberto 10 10123 Torino, Italia tel. +39 0116702862 fax +39 0116702878 http://www.elviradinardo.it %------------------------------------------------------- <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> Mail priva di virus. www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

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Seminario di Stefano Pagliarani a Pisa
by Dario Trevisan 15 Mar '19

15 Mar '19

Cari colleghi, annuncio il seguente seminario che si terrà lunedì 25 marzo, alle 14:00, nella Sala Seminari presso il dipartimento di Matematica dell'università degli studi di Pisa. Dear colleagues, I would like to announce the following talk that will be held on Monday, 25 March 2019, at 2 PM, in Sala Seminari, Department of Mathematics, University of Pisa. #### Speaker: Stefano Pagliarani (Università degli studi di Udine) Title: Contraction methods for a class of McKean-Vlasov (mean-field) SDEs with jumps. Abstract: We consider two prototype classes of McKean-Vlasov (mean-field) SDEs with jumps. In the first case, the coefficient is assumed to be affine in the state-variable, only measurable in the law, and the dynamics allow for Lévy jumps. We study the equivalent functional fixed-point equation for the unknown time-dependent coefficients of the associated Markovian SDE. By proving a contraction property for the functional map in a suitable normed space, we infer existence and uniqueness results for the MK-V SDE, and derive a discretized Picard iteration method that approximates the law of the solution. Numerical illustrations show the effectiveness of the method, which appears to be appropriate to handle multi-dimensional settings. We finally describe possible extensions and generalizations to more general settings. The second class of MKV SDEs that we consider allows for self-exicitng jumps, which amounts to having jumps through hitting the boundary in the equivalent large particle system. The corresponding PDE problem is a particular instance of free-boundary problems known as supercooled Stefan-like problems. We write a Volterra equation for the free boundary and prove contraction results that are useful to determine the properties of the solution and to provide convergent numerical schemes. -- Dario Trevisan, Università degli Studi di Pisa, Dipartimento di Matematica, Largo Bruno Pontecorvo 5, 56127 - Pisa (PI) Italy telephone: (+39) 050 2213832 mobile: (+39) 331 2899761 Skype: dario-trevisan e-mail: dario.trevisan AT unipi.it webpage: http://people.dm.unipi.it/trevisan/

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Workshop for young researchers in complex systems "Complexity72h" @ IMT Lucca, 17-21 Jun
by Bruno Matteo 15 Mar '19

15 Mar '19

Dear all, Please spread the word of the workshop "Complexity72h", intended for the participation of students and young researchers in the area of complex systems. The applications close in only two days but it's very likely that there will be a one week extension. The workshop Complexity72h is an interdisciplinary event whose aim is to bring together young researchers from different fields of complex systems. Inspired by the 72h Hours of Science, participants will form working groups aimed at carrying out a project in a three-day time, i.e. 72 hours. Each group's goal is to upload on the arXiv a report of their work by the end of the event. A team of tutors will propose the projects, and assist and guide each group in developing their project. Alongside teamwork, participants will attend lectures from scientists coming from different fields of complex systems, and applied workshops. The workshop is organized and will be hosted by the IMT School for Advanced Studies Lucca. The workshop is addressed to Master students, PhD students and postdocs in complex systems, network science & data science. The fee is 250 euros and it includes participation, lectures, accommodation for 5 nights, coffee breaks, social dinner. 11 Feb 2019 applications start 17 Mar 2019 application deadline (likely to be extended) 25 Mar 2019 notification of acceptance 8 Apr 2019 payment acceptance 17-21 Jun 2019 workshop You can find all the information at the following link: https://complexity72h.weebly.com Best regards, Matteo Bruno

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Seminario di Pietro Rigo a Bologna
by Massimo Campanino 14 Mar '19

14 Mar '19

Il giorno venerdì 22 marzo alle ore 14:30 nell'Aula Seminario 2 del Dipartimento di Matematica dell'Università di Bologna, piazza Porta S. Donato 5, il prof. Pietro Rigo del Dipartimento di Matematica dell'Università di Pavia terrà un seminario dal titolo: On the existence of continuous processes with given one-dimensional distribution Abstract: Let $\mathcal{P}$ be the collection of Borel probability measures on $\mathbb{R}$, equipped with the weak* topology, and let $\mu:[0,1]\rightarrow\mathcal{P}$ be a continuous map. Say that $\mu$ is presentable if $X_t\sim\mu_t$, $t\in [0,1]$, for some real process $X$ with continuous paths. It may be that $\mu$ fails to be presentable. Conditions for presentability are given in this note. For instance, $\mu$ is presentable if $\mu_t$ is supported by an interval for all but countably many $t$. In addition, assuming $\mu$ presentable, we investigate whether there is a continuous process $X$ with the same finite dimensional distributions as the quantile process $Q$ induced by $\mu$. The latter is defined, on the probability space $((0,1),\mathcal{B}(0,1),\,$Lebesgue measure$)$, by \begin{gather*} Q_t(\alpha)=\inf\,\bigl\{x\in\mathbb{R}:\mu_t(-\infty,x]\ge\alpha\bigl\}\quad\quad\text{for all }t\in [0,1]\text{ and }\alpha\in (0,1). \end{gather*} Various open problems are stated as well.

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