Notiziario Scientifico

Notiziario dei seminari di carattere matematico
a cura del Dipartimento di Matematica Guido Castelnuovo, Sapienza Università di Roma

Settimana dal 15-07-2024 al 21-07-2024

Lunedì 15 luglio 2024
Sala di Consiglio, Dipartimento di Matematica, Sapienza Università di Roma
Workshop
Singular Interactions and Effective Models in Mathematical Physics
Programma:

  • 9:30 - 10:20 M. Correggi
  • 10:20 - 10:50 Coffee break
  • 10:50 - 11:40 R. Carlone
  • 11:40 - 12:30 M. Gallone
  • 12:30 - 15:00 Lunch break
  • 15:00 - 15:50 M. Ikeda
  • 15:50 - 16:40 D. Fermi
  • 16:40 - 17:10 Coffee break
  • 17:10 - 18:00 M. Falconi
I seminari si svolgeranno all'interno delle attività del progetto PRIN 2022CHELC7 "Singular Interactions and Effective Models in Mathematical Physics" finanziato dall'Unione europea - Next Generation EU.

Lunedì 15 luglio 2024
Ore 11:00, Biblioteca accademica, Accademia Nazionale delle Scienze detta dei XL, Scuderie Vecchie di Villa Torlonia, Via L. Spallanzani 1/A – Roma
Colloquium LYSM
Michel Talagrand (Académie des Sciences, Paris)
Chaining: a long history
The generic chaining is an essentially optimal method to bound many stochastic processes.


Lunedì 15 luglio 2024
Ore 14:30, Aula 1B1, SBAI, Sapienza Università di Roma, Via Scarpa 12
Seminario "PDE a tutto SBAI"
Salvador Moll (University of Valencia, Spain)
Anisotropic inverse mean curvature flow
In this talk, I will present recent results in collaboration with Esther Cabezas-Rivas and Marcos Solera (U. Valencia) concerning the analogous to the inverse mean curvature flow in the presence of an anisotropy (including the case of crystalline anisotropies). I will show the construction of weak solutions of the anisotropic inverse mean curvature flow under very mild assumptions both on the anisotropy and on the initial data. The existence is shown by means of an approximation procedure with anisotropic p-harmonic functions. Our notion of weak solution, which turn out to be unique, still recovers variational and geometric properties similar to those introduced by Huisken-Ilmanen in the classical isotropic setting. We also reach classical results like continuity or exponential growth of the perimeter, as well as outward minimizing properties of the sublevel sets. Moreover, by assuming the extra regularity given by an interior rolling ball condition, the solutions are shown to be continuous and satisfy Harnack inequalities. Finally, I will show some examples of explicit solutions
Per informazioni, rivolgersi a: francesco.petitta@uniroma1.it


Martedì 16 luglio 2024
Sala di Consiglio, Dipartimento di Matematica, Sapienza Università di Roma
Workshop
Singular Interactions and Effective Models in Mathematical Physics
Programma:

  • 9:30 - 10:20 P. Antonelli
  • 10:20 - 10:50 Coffee break
  • 10:50 - 11:40 K. Datchev
  • 11:40 - 12:30 S. Gustafson
  • 12:30 - 15:00 Lunch break
  • 15:00 - 15:50 V. Romano
  • 15:50 - 16:40 L. Barletti
  • 16:40 - 17:10 Coffee break
  • 17:10 - 18:00 M. Olivieri
I seminari si svolgeranno all'interno delle attività del progetto PRIN 2022CHELC7 "Singular Interactions and Effective Models in Mathematical Physics" finanziato dall'Unione europea - Next Generation EU.

Mercoledì 17 luglio 2024
Sala di Consiglio, Dipartimento di Matematica, Sapienza Università di Roma
Workshop
Singular Interactions and Effective Models in Mathematical Physics
Programma:

  • 9:30 - 10:20 H. Kovařík
  • 10:20 - 10:50 Coffee break
  • 10:50 - 11:40 L. Tentarelli
  • 11:40 - 12:30 R. Adami
I seminari si svolgeranno all'interno delle attività del progetto PRIN 2022CHELC7 "Singular Interactions and Effective Models in Mathematical Physics" finanziato dall'Unione europea - Next Generation EU.

Venerdì 19 luglio 2024
Ore 14:30, Aula A, Dipartimento di Matematica e Fisica, Università di Roma Tre, Via della Vasca Navale 84
Seminario di Teoria dei Numeri
Steven J. Miller (Williams College)
Machine Learning in Elliptic Curves and Beyond: From Conjectures to Theorems to Conjectures
Many delicate problems in number theory have only recently become amenable to numerical exploration due to the painfully slow convergence rate. Quantities associated to elliptic curves often converge at the scale of the logarithm of the conductor; thus while we may have millions of curves with conductors at most \(10^{20}\), this translates to less than 50 (and one would never conjecture on properties of primes from integers up to 50!). Improvements in computing power have led to larger data sets, which in conjunction with machine learning (ML) techniques have found new behavior. Recently He, Le and Oliver used ML to distinguish numerous curves based on standard invariants, and discovered oscillatory behavior in the coefficients of the associated L-functions, which agrees with recently developed theoretical models. We report on work of the author and his colleagues on lower order terms in coefficients in families, describing an open conjecture where the "nice" term is hard to extract due to large, fluctuating terms, in the hopes of forming collaborations with audience members. These lower order terms have implications for the distribution of zeros of elliptic curve L-functions at and near the central point.
Per informazioni, rivolgersi a: fabrizio.barroero@uniroma3.it


Le comunicazioni relative a seminari da includere in questo notiziario devono pervenire esclusivamente mediante apposita form da compilare online, entro le ore 24 del giovedì precedente la settimana interessata. Le comunicazioni pervenute in ritardo saranno ignorate. Per informazioni, rivolgersi all'indirizzo di posta elettronica seminari@mat.uniroma1.it.
Coloro che desiderano ricevere questo notiziario via e-mail sono pregati di comunicare il proprio indirizzo di posta elettronica a seminari@mat.uniroma1.it.

© Università degli Studi di Roma "La Sapienza" - Piazzale Aldo Moro 5, 00185 Roma