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corso di dottorato di Vittoria Silvestri in Sapienza a partire dal 18/3
by Lorenzo Taggi 14 Mar '24

14 Mar '24

*Title: *Introduction to Random Geometry *Abstract:* This course wants to give an overview of active research topics in the field of Random Geometry, with a focus on growth models. We will start by discussing discrete growth models such as the Eden model, Diffusion Limited Aggregation and Internal DLA. We will then move to the continuum for the remaining part of the course. After discussing conformal invariance of Brownian motion, we will focus on the class of randomly growing domains on the complex plane which can be described via Loewner dynamics. We will introduce several random aggregation models on the complex plane, which go under the name of Hastings-Levitov models and Aggregate Loewner Evolutions, of which we will study the large-scale features, presenting existing results and several open questions. *Keywords:* Random growth models, Diffusion Limited Aggregation, Schramm-Loewner Evolutions, Hastings-Levitov, Aggregate Loewner Evolutions. *Prerequisites:* The course will be as self-contained as possible. However, basic notions of Probability and Analysis are necessary. Some knowledge of complex analysis, martingale theory and stochastic calculus is desirable but not required. *Duration:* 20 hours (10 lectures of 2 hours each) *Class schedule:* The lectures will take place in Room G, Dipartimento di Matematica G. Castelnuovo, 13:00-15:00 in the following dates: Monday 18/3 Wednesday 20/3 Friday 22/3 Monday 25/3 Wednesday 27/3 Tuesday 2/4 Wednesday 3/4 Monday 8/4 Wednesday 10/4 Friday 12/4

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Politecnico di Milano - MOX Colloquia - Simon Wood - ore 14
by Laura Maria Sangalli 14 Mar '24

14 Mar '24

Scusandomi per refuso in precedente comunicazione, desidero precisare per gli interessati che l’orario di inizio del seminario di Simon Wood di oggi pomeriggio è alle ore 14 precise. Si avvisa che in data 14-03-2024, alle ore **14:00** precise presso il Politecnico di Milano, in aula Consiglio (settimo piano Dipartimento di Matematica - edificio 14), si svolgerà il seguente seminario della serie MOX Colloquia Simon Wood, School of Mathematics, University of Edinburgh Titolo: On Neighbourhood Cross Validation Abstract: Cross validation is a well known method for estimating hyperparameters in complex regression models. It comes in many varieties, but some of the more interesting flavours require multiple model fits with consequently high cost. This talk shows how the high cost can be side-stepped for a wide range of models estimated using a quadratically penalized smooth loss, with rather low approximation error. Once the computational cost has the same leading order as a single model fit, it becomes feasible to efficiently optimize the chosen cross-validation criterion with respect to multiple smoothing/precision parameters. Interesting applications include cross-validating smooth additive quantile regression models, and the use of leave-out-neighbourhood cross validation for dealing with nuisance short range autocorrelation. The link between cross validation and the jackknife can be exploited to obtain reasonably well calibrated uncertainty quantification in these case. Il link per seguire il seminario online sarà reso disponibile pochi minuti prima dell’avvio del seminario al seguente link https://mox.polimi.it/mox-colloquia-seminars-list/mox-seminars/?id_evento=2… Tutti gli interessati sono cordialmente invitati a partecipare, Laura Sangalli —— Laura Maria Sangalli MOX - Dipartimento di Matematica Politecnico di Milano Piazza Leonardo da Vinci 32 20133 Milano - Italy (+39) 02 2399 4554 laura.sangalli(a)polimi.it<mailto:laura.sangalli@polimi.it> https://sangalli.faculty.polimi.it

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PhD position on bootstrap percolation at TU Graz, Austria
by Mihyun Kang 14 Mar '24

14 Mar '24

Dear colleagues, the Graz school of Discrete Mathematics is currently advertising 12 PhD positions (funded by the Austrian Science Fund). One PhD student will work on *Topic 6 "Bootstrap percolation in high-dimensional graphs" * under the supervision of Joshua Erde and Mihyun Kang. We would be grateful if you could forward this information to any suitable candidates. Detailed information can be found at https://www.math.tugraz.at/graz-school-of-discrete-mathematics/index.php?li… Best regards, Joshua Erde and Mihyun Kang

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PhD
by GIOVANNI LUCA TORRISI 14 Mar '24

14 Mar '24

Gentili colleghi, ricevo ed inoltro. Cordialmente, Giovanni Luca Torrisi. ######################################### PhD position at Hamburg University of Technology The Institute of Mathematics at Hamburg University of Technology invites applications for a PhD position in probability theory. The position is funded via the DFG Priority Programme 2265 Random Geometric Systems and the research topic will be on the intersection of limit theorems, Stein's method and stochastic geometry. The successful candidate is expected to have a Master's degree in Mathematics or a related field, a good background in probability theory and proficiency in written and spoken English. Knowledge of German is not required. The position (75%, TV-L 13) is for three years. The starting date should be between June and October 2024. Please apply by April 3, 2024 online via our application portal, where you can find more information: https://stellenportal.tuhh.de/5vs7d For questions please contact Prof. Dr. Matthias Schulte at matthias.schulte(a)tuhh.de<mailto:matthias.schulte@tuhh.de>.

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Seminario di C. Ulcigrai a Milano-Bicocca (21 mar 2024)
by Giampaolo Cristadoro 13 Mar '24

13 Mar '24

Buongiorno, ho il piacere di annunciare che il 21 Marzo alle ore 14:30 in U5 RATIO - aula 3014 (Univ. Milano - Bicocca) si terrà il seguente Seminario Matematico e Fisico di Milano: Prof.ssa Corinna Ulcigrai (Institut für Mathematik - Universität Zürich) "Periodic surfaces and deterministic random walks: dynamics between geometry and probability" Abstract: Many deterministic systems display chaotic features: the stronger the chaotic features, the better the system can be approximated by a probabilistic model, an idea that can be traced back to Boltzmann and explains the success of the branch of dynamical systems known as ergodic theory. In this talk, we will discuss systems that display only 'mild’ chaotic features, such as the geodesic flow on surfaces with a flat geometry or the Ehrenfest model in mathematical physics. Recent breakthroughs in our understanding of the latter model introduced more than a century ago, were made possible by the powerful tools exploiting moduli spaces of surfaces and Teichmueller dynamics, an area which has attracted the work of several Fields medallists. We will in particular highlight some results of probabilistic flavor that can still be proven for these deterministic systems, hidden in the fractal structure of trajectories and the 'deterministic random walks' that describe them. Il seminario sarà seguito da un piccolo rinfresco. Tutti gli interessati sono invitati a partecipare, Giampaolo Cristadoro -------------------------------------------------------- Dipartimento di Matematica e Applicazioni Università di Milano - Bicocca via R. Cozzi 55 - 20125 Milano - Italy ph. +39 02 6448 5778

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Seminario su Filosofia della Matematica-Lezioni Enriques
by Stefania Ugolini 13 Mar '24

13 Mar '24

Dear All, we are pleased to invite you to the following Seminar at the Department of Mathematics, Università degli Studi di Milano, MATEMATICA ED ESTETICA: ESISTE UN CLASSICISMO MATEMATICO? Prof. Frédéric Patras, Università della Costa Azzurra Aula MG, Via Mangiagalli 32, Milano, ore 14:00 Best regards, Stefania Ugolini.

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2-years Post-doctoral fellowship at Politecnico di Milano on ANTHEM project | expression of interest
by Simone Vantini 12 Mar '24

12 Mar '24

Con preghiera di diffusione a tutti i potenziali interessati. Grazie, Francesca Ieva e Simone Vantini ************************** To whom it may concern, We invite outstanding scholars to express their interest for a 2 years post-doc position at the MOX laboratory of the Department of Mathematics of Politecnico di Milano within the activities of Spoke 3 of the ANTHEM project (AdvaNced Technologies for Human-centrEd Medicine). Requirements We seek candidates with a strong commitment to applied research and the aspiration to contribute to ANTHEM project. Candidates must hold a PhD in statistics, data science, mathematics or related fields, preferably have teaching experience, and a relevant record of publications and/or research projects. Primary attention will be given to profiles showing expertise in coding with R or python. Ideal candidates will show a passionate drive to engage in Politecnico di Milano’s dynamic and stimulating academic environment and contribute to its further development. They will have research experience on Statistics and Data Science and intend to pursue research projects in the field, with a focus on: Statistical Learning, Analysis of Complex Data, Interaction between Bioengineering and Statistics. Activity, Role and Responsibilities The position holders are expected to undertake rigorous and innovative research, publish in high quality international journals, and provide academic assistance or leadership in research activities. They are also expected to contribute to the ANTHEM community at large. The post-doc position is for a two-year fixed-term contract. Appointments are full-time and the salary is competitive (36Keuro/y). Main focus of the project is the analysis of multivariate time series recording vital signals and pollutants exposure through innovative wearable devices. Innovative models and algorithms for multivariate spatially correlated time series will be developed, together with method for estimating their prediction uncertainty based on innovative resampling methods like conformal prediction. About the group The research will be conducted in an interdisciplinary group composed by statisticians, bioengineers and mathematicians, across the Department of Mathematics and the Department of Electronics, Informatics and Bioengineering of the Politecnico di Milano. Reference person for activities of Spoke 3 within ANTHEM project is Prof. Andrea Aliverti, Department of Electronics, Informatics and Bioengineering. Reference persons for the contract will be Proff. Francesca Ieva and Simone Vantini, from Department of Mathematics. Expression of Interest To express your interest for this position please send by April 4th to francesca.ieva(a)polimi.it<mailto:francesca.ieva@polimi.it> and simone.vantini(a)polimi.it<mailto:simone.vantini@polimi.it> the following documents: * CV * Motivation letter, listing activities (if any) related to topics possibly connected with the project. Kind regards, Simone Vantini ____________ Simone Vantini Associate Professor of Statistics MOX Laboratory for Modeling and Scientific Computing Dept. of Mathematics - Politecnico di Milano Address: Piazza Leonardo da Vinci 32, 20133, Milan, Italy Phone: (+39) 02 2399 4584 Email: simone.vantini(a)polimi.it<mailto:simone.vantini@polimi.it>

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Annuncio "A SPRING DAY IN PROBABILITY AND STATISTICAL PHYSICS"- 19 Aprile 2024
by Gianmarco Bet 12 Mar '24

12 Mar '24

(ENGLISH BELOW) Care colleghe e colleghi, Vi annunciamo che venerdì 19 Aprile si terrà la tredicesima giornata di seminari: A SPRING DAY IN PROBABILITY AND STATISTICAL PHYSICS Università degli studi di Firenze Venerdì 19 Aprile 2024 Lecturers: Dalia Terhesiu (Leiden University) e Eric Cator (Radboud University) Location: Sala Tricerri, Dipartimento di Matematica e Informatica Ulisse Dini, viale Morgagni 67/a, Firenze, Firenze Ricordiamo che ciascun oratore farà una lezione introduttiva e divulgativa di 45 minuti pensata proprio per i non esperti, seguita da altri 45 minuti di tipo seminario (vedi programma). Maggiori informazioni sono reperibili alla pagina web dell’evento. Anche gli abstract degli interventi verranno presto caricati sulla pagina web. Note pratiche: a coloro che fossero interessati (per una migliore organizzazione) chiediamo di compilare il seguente Google Form per indicare l'intenzione di partecipare alla giornata e in particolare al pranzo: https://docs.google.com/forms/d/e/1FAIpQLSdgYSLaBkY-mgklxu51i5z0kCQez2jZ46Z… Vi aspettiamo numerosi e vi preghiamo di diffondere l’annuncio con chi pensiate possa essere interessato/a, in particolare giovani ricercatrici e ricercatori! Luca Avena, Luisa Andreis e Gianmarco Bet Scientific advisory committee: F. Caravenna, E.N.M. Cirillo, F. Colomo, P. Dai Pra, A. De Masi, C. Giardinà, R. Livi, F. Martinelli, I.G. Minelli, B. Scoppola, E. Scoppola. PROGRAMMA Prof. Dalia Terhesiu (Leiden University) Title: Generalized law of iterated logarithm for dependent processes with superdiffusive behaviour Prof. Eric Cator (Radboud University) Title: Contact process on finite graphs 10:30-11:00 Welcome coffee 11.00-11.45 Introductory lecture: Terhesiu 11.45-12.15 Break 12.15-13.00 Seminar: Terhesiu 13.00-14.30 Pranzo 14.30-15.15 Introductory lecture: Cator 15.15-15.45 Break 15.45-16.30 Seminar: Cator Trovate qui <https://drive.google.com/file/d/1IH-d2sWReUrurmadsz4Ew6MPRMbM-rlT/view?usp=…> il poster dell’evento. —--------------------------------------------------- Dear colleagues, We are pleased to announce that on Friday, April 19th, the thirteenth seminar day will take place: A SPRING DAY IN PROBABILITY AND STATISTICAL PHYSICS University of Florence Friday 19 April 2024 Lecturers: Dalia Terhesiu (Leiden University) and Eric Cator (Radboud University) Location: Tricerri Hall, Department of Mathematics and Computer Science Ulisse Dini, Viale Morgagni 67/a, Florence, Florence We would like to remind you that each speaker will give an introductory and informative lecture of 45 minutes tailored for non-experts, followed by another 45 minutes of seminar-style presentation (see program). More information can be found on the event's webpage. The abstracts of the talks will also be uploaded to the webpage soon. Practical notes: to those who are interested (for better organization), we kindly ask you to fill out the following Google Form to indicate your intention to participate in the day and especially for lunch: https://docs.google.com/forms/d/e/1FAIpQLSdgYSLaBkY-mgklxu51i5z0kCQez2jZ46Z… We look forward to seeing many of you and please feel free to share the announcement with those you think may be interested, particularly young researchers! Luca Avena, Luisa Andreis, and Gianmarco Bet Scientific advisory committee: F. Caravenna, E.N.M. Cirillo, F. Colomo, P. Dai Pra, A. De Masi, C. Giardinà, R. Livi, F. Martinelli, I.G. Minelli, B. Scoppola, E. Scoppola. PROGRAM Prof. Dalia Terhesiu (Leiden University) Title: Generalized law of iterated logarithm for dependent processes with superdiffusive behavior Prof. Eric Cator (Radboud University) Title: Contact process on finite graphs 10:30-11:00 Welcome coffee 11:00-11:45 Introductory lecture: Terhesiu 11:45-12:15 Break 12:15-13:00 Seminar: Terhesiu 13:00-14:30 Lunch 14:30-15:15 Introductory lecture: Cator 15:15-15:45 Break 15:45-16:30 Seminar: Cator Find the event poster here <https://drive.google.com/file/d/1IH-d2sWReUrurmadsz4Ew6MPRMbM-rlT/view?usp=…>. ---------------------------------------------------------------------- Gianmarco Bet (he/him) Senior researcher https://gianmarco.bet Phone: (+39) 055 2751491 Department of Mathematics and Computer Science "U. Dini" University of Florence Viale Morgagni, 65 50134 Firenze, Italy Office 64 ----------------------------------------------------------------------

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Tenure-track position in Probability (RTT) at the University of L'Aquila (deadline April 4, 2024)
by alessia.nota＠univaq.it 12 Mar '24

12 Mar '24

Dear colleagues, We would like to advertise a Tenure-track assistant professor position (RTT) in Probability (MAT/06, 01/A3) that was just opened at the University of L'Aquila in the Department of Information Engineering, Computer Science and Mathematics. The tenure-track is with tenure to Associate Professor. More details can be found here https://bandi.mur.gov.it/jobs.php/public/job/id_job/118936 and here https://www.univaq.it/include/utilities/blob.php?table=concorso_doc&id=352&… The application deadline is on Thursday April 4, 2024 and it must be submitted electronically at https://pica.cineca.it/univaq/2024rtt001/ We invite all interested candidates to contact us for any inquiry and for technical assistance with the application procedure, if needed. Notice that for those candidates who did not obtain a PhD from an Italian university an equivalence procedure for the title is required. More details can be found here https://www.univaq.it/section.php?id=2201 We also welcome applications from candidates who initially do not speak italian. Our master programs are in english so there will not be any problem with teaching at the beginning. The teaching load is 60 hours before tenure (one course of 5 hours per week for a 12-week semester). After tenure the teaching load is the double (120 hours). Please feel free to share this information with anyone interested. Best wishes, Alessia Nota

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Lunedì 18 Marzo 2024: Seminario di Gianmarco Bet alla Sapienza
by Faggionato, Alessandra 12 Mar '24

12 Mar '24

Buongiorno, Gianmarco Bet (Università di Firenze) terrà un seminario alla Sapienza Lunedì 18 Marzo alle 16:00. Sotto trovate i dettagli. Saluti Alessandra *Time*: Monday 18 March, 16:00 *Room*: Sala di Consiglio, Department of Mathematics "Guido Castelnuovo", Sapienza University of Rome *Title:* Detecting a late changepoint in the preferential attachment model *Abstract*: Motivated by the problem of detecting a change in the evolution of a network, we consider the preferential attachment random graph model with a time-dependent attachment function. Our goal is to detect whether the attachment mechanism changed over time, based on a single snapshot of the network at time $n$ and without directly observable information about the dynamics. We cast this question as a hypothesis testing problem, where the null hypothesis is a preferential attachment model with a constant affine attachment parameter \delta_0, and the alternative hypothesis is a preferential attachment model where the affine attachment parameter changes from $\delta_0$ to $\delta_1$ at an unknown changepoint time $\tau_n$. For our analysis we assume that the changepoint occurs close to the observation time of the network, which corresponds to the relevant scenario where we aim to detect the changepoint shortly after it has happened. We present two tests based on the number of vertices with minimal degree. The first test assumes knowledge of $\delta_0$, while the second does not. We show that these are asymptotically powerful when $n-\tau_n \gg n^{1/2}$. Furthermore, we prove that the test statistics for both tests are asymptotically normal, allowing for accurate calibration of the tests. If time allows, we will present numerical experiments to illustrate the finite sample test properties. -- ************************************************* Prof. Alessandra Faggionato https://www1.mat.uniroma1.it/people/faggionato/ Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome Office 123, first floor *************************************************

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