conference, meeting

Mathematical Physics at the Eclipse, Afunalhue, 13.12.-16.12. 2020

From 13 to 16 of December 2020 we will have a Chilean Mathematical Physics meeting in the Ruka of the Pontificia Universidad Católica de Chile in Afunalhue close to Villarica. The idea is that this will be start of a regular Mathematical Physics meeting in Afunalhue.

On Monday, December 14 there will be a total solar eclipse visible in the lunch break!

Organizers: Christian Sadel and Giuseppe De Nittis

Preliminary Schedule

Sunday, 13.12.2020 is the arrival day, and there is a dinner in the evening.

TimeMon. 14.12.Tue. 15.12.Wed. 16.12.
8:00 - 9:30BreakfastBreakfastBreakfast
9:30-10:00Registration / WelcomeTalk 3Talk 6
10:00-10:30 Talk 1
10:30-11:00CoffeeCoffee
11:00-12:00Early LunchTalk 4Talk 7
12:00-14:30Lunch / Eclipse
(Maximum ~13:13)
LunchLunch
14:30-15:30Talk 2Talk 5Discussion Session
15:30-16:30CoffeeCoffeeCoffee
16:30-17:30Discussion SessionDiscussion SessionDeparture
18:30-20:00DinnerDinner

Participants

Rafael BenguriaPUC Chile
Olivier BourgetPUC Chile
Giuseppe De NittisPUC Chile
Christian SadelPUC Chile
Amal TaarabtPUC Chile

Sponsors

Announcement, conference

2nd JNMP Conference on Nonlinear Mathematical Physics: 2019

The 2nd JNMP Conference on Nonlinear Mathematical Physics: 2019 conference is held from May 26 till June 4, 2019 at the University of Santiago de Chile.
USACH – Centro de estudios de postgrado y educación continua 
(Center for postgraduate studies and continuing education) 
Piso 3, Av. Apoquindo 4499, Las Condes, Región Metropolitana, Santiago, Chile

Description

This conference is being organized for the Journal of Nonlinear Mathematical Physics (JNMP) community. We aim to bring together experts and young scientists in the area of Mathematical Physics that concern Nonlinear Problems in Physics and Mathematics. The main topic of the conference is centered around the scope of JNMP: continuous and discrete integrable systems including ultradiscrete systems, nonlinear differential- and difference equations, applications of Lie transformation groups and Lie algebras, nonlocal transformations and symmetries, differential-geometric aspects of integrable systems, classical and quantum groups, super geometry and super integrable systems.

doctoral schools

Spring School in Analysis and Mathematical Physics, October 14-22, 2019

From October 14 to 22, we will have the Spring School in Analysis and Mathematical Physics in Santiago at the Pontificia Universidad Católica de Chile. The school is directed to undergraduate and graduate students.

Guide:
Here is the schedule ,
Here is a list of titles and abstracts ,
Here area some course files to download ,
Here is a list of participants

– Oficial website of the Doctoral School in english –
– Página oficial de la Escuela Doctoral en español –

Schedule

Weak 1, October 14-18

 Mo
14.10.
Tu
15.10.
We
16.10.
Th
17.10.
Fr
18.10.
9:00-9:30Welcome
9:30-10:00Course KrejcirikCourse KrejcirikCourse RivièreCourse Richard
10:00-11:00 Talk P. Herreros
11:00-11:30coffeecoffeecoffeecoffeecoffee
11:30-1:00Course RivièreCourse Rivièretutorial C. Krejcirik
(Sadel, Krejcirik)
Course RichardCourse Sirakov
1:00-2:00lunchlunchlunchlunchlunch
2:00-3:00Course Krejcirik Talk R. Benguria Talk O. Bourget Talk C. Roman Course Sirakov
3:00-3:30coffeecoffeecoffee
3:30-4:00Presentation
graduate program
tutorial C. Riviere
(Petrache)
Course Richard
tutorial C. Richard
(Richard, Tiedra)
coffee
4:00-5:00coffeeClub de
Matematica

Weak 2, October 21-22

 Mo
21.10.
Tu
22.10.
9:30-10:00Tutorial C. Sirakov
(Kamburov)
10:00-11:00 Talk A. Taarabt
11:00-11:30coffeecoffee
11:30-12:30Course Sirakov Talk M. Chuaqui
12:30-1:00Interviews
1:00-2:00lunchBBQ
2:00-3:00interviews
3:00-3:30coffee
3:30-6:00interviews

Program, Speakers and Abstracts

Courses

  • Geometrical aspects of spectral theory, by David Krejcirik (Czech Technical University).
    Abstract: Spectral theory is an extremely rich field which has found its application in many areas of physics and mathematics. One of the reason which makes it so attractive on the formal level is that it provides a unifying framework for problems in various branches of mathematics, for example partial differential equations, calculus of variations, geometry, stochastic analysis, etc.
    The goal of the lecture is to acquaint the students with spectral methods in the theory of linear differential operators coming both from modern as well as classical physics, with a special emphasis put on geometrically induced spectral properties. We give an overview of both classical results and recent developments in the field, and we wish to always do it by providing a physical interpretation of the mathematical theorems.
     
  • Operator algebras: what are they good for ?, by Serge Richard (Nagoya University).
    Abstract: Operator algebras naturally appear when dealing with families of operators having common properties. From this point of view, they can be considered as a generalization of spectral theory of a single operator. Depending on the purpose and on the context, operator algebras can be of very different types. For the study of operators on Hilbert spaces, C*-algebras and von Neumann algebras are of the greatest interest.
    Our aim for this mini-course is to introduce the concept of C*-algebras and to show how they can be effectively used for the study of operators on Hilbert space. In the first lecture we shall present the main definitions and deal with bounded operators only. During the second lecture, C*-algebraic technics will be used for the study of unbounded operators. In the final lecture, the key concepts of K-theory for C*-algebras will be introduced, and an application to Toeplitz operators will conclude this mini-course.
     
  • Minmax methods in the calculus of variations of curves and surfaces, by Tristan Riviere (ETH Zürich).
    Abstract: The study of the variations of curvature functionals takes its origins in the works of Euler and Bernouilli from the eighteenth century on the Elastica. Since these very early times, special curves and surfaces such as geodesics, minimal sur- faces, elastica, Willmore surfaces, etc. have become central objects in mathematics much beyond the field of geometry stricto sensu with applications in analysis, in applied mathematics, in theoretical physics and natural sciences in general. Despite its venerable age the calculus of variations of length, area or curvature function- als for curves and surfaces is still a very active field of research with important developments that took place in the last decades. In this mini-course we shall con- centrate on the various minmax constructions of these critical curves and surfaces in euclidian space or closed manifolds. We will start by recalling the origins of minmax methods for the length functional and present in particular the “curve shortening process” of Birkhoff. We will explain the generalization of Birkhoff’s approach to surfaces and the ”harmonic map replacement” method by Colding and Minicozzi. We will then recall some fundamental notions of Palais Smale deformation theory in infinite dimensional spaces and apply it to the construction of closed geodesics and Elastica. In the second part of the mini-course we will present a new method based on smoothing arguments combined with Palais Smale deformation theory for performing successful minmax procedures for surfaces. We will present various applications of this so called “viscosity method” such as the problem of computing the cost of the sphere eversion in 3-dimensional Euclidian space.
     
  • Variational approach to boundary value problems, by Boyan Sirakov (Pontificia Universidade Católica do Rio de Janeiro)
    Abstract: Assuming some knowledge of functional analysis and Lebesgue spaces, we start by making a brief introduction to Sobolev spaces. We develop the variational formulation of boundary value problems for ordinary and partial differential equations, and use basic results from functional analsis to show their solvability in an appropriate weak sense. If time permits, we will also discuss regularity of weak solutions.

Talks

  • Can one hear the shape of a drum? Rafael Benguria (Pontificia Universidad Católica de Chile)
    Abstract: In 1966, Mark Kac wrote a,  now classical, paper for the American Mathematical Monthly posing that appealing question. For that manuscript Mark Kac got the 1968  Chauvenet Prize for “mathematics expository writing” of the Mathematical Association of America. In this talk I will present a review of that problem which was eventually answered in the negative by C. Gordon, D. Webb and S. Wolpert in 1992.
       
  • On Discrete Time Dependent Quantum Systems Olivier Francois Bourget (Pontificia Universidad Católica de Chile).
    Abstract: After a review of various concepts involved in the study of quantum dynamical systems, we will illustrate them with models displaying spectral and dynamical transitions.
     
  • Boundary Rigidity problems in Geometry Pilar Herreros (Pontificia Universidad Católica de Chile).
    Abstract: In general, boundary rigidity refers to the question of whether the metric on a manifold is determined by some data on the boundary. The classical problem is boundary distance rigidity, where the distance between boundary points is known. When this fails, we can study the scattering data of the region; for each point and inward direction on the boundary, it associates the exit point and direction of the corresponding unit speed geodesic. We will discus conditions on spaces where we have distance rigidity, scattering rigidity or lens rigidity, where the boundary data considered is the scattering data plus the length of each geodesic.
     
  • Analysis of singularities in elliptic equations Carlos Román Parra (Pontificia Universidad Católica de Chile).
    Abstract: In this talk I will discuss problems arising in mathematical physics and conformal geometry, whose common point is about the analysis of singularities in nonlinear elliptic partial differential equations. I will begin by analyzing the occurrence of quantized vortices in the Ginzburg-Landau model of superconductivity. Then, I will discuss the occurrence of “bubbling” in the classical problem in geometric analysis of prescribing the Gaussian or scalar curvature of a manifold.
     
  • T.B.A. Amal Taarabt (Pontificia Universidad Católica de Chile)
     
  • T.B.A. Martin Chuaqui (Pontificia Universidad Carolina de Chile)

Course materials

Organizers

Participants

Alejandro Quiroga Triviño
Alfredo Soliz Gamboa
Alisson Cordeiro Alves Tezzin
Angela Andrea Flores Concha
Angela Patricia Vargas Mancipe
Artur Henrique de Oliveira Andrade
Boris Bermudez Cardenas
Carlos Alberto Santana Rosas
Cristóbal Ignacio Vallejos Benavides
Danilo Jose Polo Ojito
Danko Aldunate bascuñan 
Fabian Domingo Caro Perez
Felipe Ignacio Flores Llarena
Fernando Rodriguez Avellaneda
Jaime Andrés Gómez Ortiz
Jarvin Javier Mestra Páez.
Javier Rolando Corregidor Maldoando
José David Beltrán Lizarazo
Juan Felipe Lopez Restrepo
Juan Manuel González Brantes
Katharina Klioba
Luciano Sciaraffia Rubio
Lukas Daniel Palma Torres
Lya Alejandra Hurtado Guzmán
Marcos Andrés Hermosilla Cartes
Mauro Javier Mendizábal Pico
Nora Christine Doll
Rubén Reinaldo Ariel Tobar Quiroz
Sandra Katherine Moreno Lemos
Sebastián Alajandro Muñoz Thon
Sebastian Camilo Puerto Galindo
Sebastian Cuellar
Simeona Quispe Monterola
Victor Eloy Ramos Marrugo
Wankar Fulguera Condori
Yikang Li
Yina Ospino Buelvas
Zamir David Beleño Rodriguez