Aula Magna (Dip. Matematica)

Weather and Climate: Deterministic or Stochastic ?

Relatore: 
Michael Ghil

Abstract: The atmosphere, ocean, and other components of the climate system behave in a fairly irregular way. A major surprise of the late
20th century was the realization that such behavior could be produced by natural systems with a small number of degrees of freedom, governed
by fully deterministic, but nonlinear laws. Still, the climate system has a large number of degrees of freedom, and ample room for random
factors to intervene. Can we reconcile a low-order, deterministically nonlinear description of weather or climate with a high-order, possibly

Data Seminario: 
Thursday, October 5, 2017
Aula: 
Aula Magna (Dip. Matematica)
Ora Fine: 
Saturday, January 1, 0000
Affiliazione: 
Ecole Normale Superieure, Paris, France, and University of California, Los Angeles, USA
Ora Inizio: 
Saturday, January 1, 0000

The Bures-Wasserstein distance on positive definite matrices

Relatore: 
Rajendra Bhatia

We will discuss an interesting metric on the space of positive definite matrices, called the Bures distance in the quantum information literature and the Wasserstein metric in optimal transport. This has connections with Riemannian geometry, statistics, QIT and optimal transport. We will explain these connections. The two-variable and several-variable mean with respect to this metric will be described. Our perspective from matrix analysis leads to simpler proofs and suggests new problems. 

Data Seminario: 
Tuesday, July 11, 2017
Aula: 
Aula Magna (Dip. Matematica)
Ora Fine: 
Saturday, January 1, 0000
Affiliazione: 
Indian Statistical Institute, Delhi
Ora Inizio: 
Saturday, January 1, 0000

Seminario di Analisi Matematica - Morse-Sard Theorem for the sharp case of Sobolev functions and applications to the fluid mechanics

Relatore: 
Prof.Mikhail Korobkov
Data Seminario: 
Wednesday, June 28, 2017
Aula: 
Aula Magna (Dip. Matematica)
Ora Fine: 
Saturday, January 1, 0000
Affiliazione: 
Sobolev Institute of Mathematics - Novosibirsk State University - Russia
Ora Inizio: 
Saturday, January 1, 0000

NPC cube complexes

Relatore: 
Leone Slavich

Cube complexes are analogues of simplicial complexes built using cubes
rather than simplices. Under very mild combinatorial assumptions, they
exhibit interesting geometric properties which make them useful in
studying the fundamental groups of negatively curved spaces such as
hyperbolic manifolds.
In the talk I will introduce them and review the theory behind them. In
particular I will show some techniques which allow to realize the
fundamental group of hyperbolic 3-manifolds as fundamental group of a

Data Seminario: 
Wednesday, May 17, 2017
Aula: 
Aula Magna (Dip. Matematica)
Ora Fine: 
Saturday, January 1, 0000
Affiliazione: 
Università di Pisa
Ora Inizio: 
Saturday, January 1, 0000

Flussi geometrici su varietà con bordo

Relatore: 
Giovanni Mascellani

I flussi geometrici sono oggetti geometrici che, a partire dalla loro introduzione da parte di Hamilton nel 1981, si sono rivelati strumenti molto potenti per risolvere problemi di analisi geometrica (particolarmente nota è la dimostrazione della congettura di Poincaré mediante il flusso di Ricci, completata da Perelman nella prima metà degli anni 2000).

Data Seminario: 
Wednesday, March 1, 2017
Aula: 
Aula Magna (Dip. Matematica)
Ora Fine: 
Saturday, January 1, 0000
Affiliazione: 
Scuola Normale Superiore
Ora Inizio: 
Saturday, January 1, 0000

METT VII: 7th Workshop on matrix equation and tensor techniques

This workshop is the seventh in a series of workshops on matrix equations and tensor techniques. As in the previous meetings, the focus will be on the latest developments in the theory, computation and applications of linear and nonlinear matrix equations and tensor equations.This workshop is the seventh in a series of workshops on matrix equations and tensor techniques. As in the previous meetings, the focus will be on the latest developments in the theory, computation and applications of linear and nonlinear matrix equations and tensor equations.

More information:

Data Seminario: 
Tuesday, February 14, 2017
Tipo Seminario: 
Aula: 
Aula Magna (Dip. Matematica)
Ora Inizio: 
Saturday, January 1, 0000

METT VII: 7th Workshop on matrix equation and tensor techniques

This workshop is the seventh in a series of workshops on matrix equations and tensor techniques. As in the previous meetings, the focus will be on the latest developments in the theory, computation and applications of linear and nonlinear matrix equations and tensor equations.This workshop is the seventh in a series of workshops on matrix equations and tensor techniques. As in the previous meetings, the focus will be on the latest developments in the theory, computation and applications of linear and nonlinear matrix equations and tensor equations.

More information:

Data Seminario: 
Monday, February 13, 2017
Tipo Seminario: 
Aula: 
Aula Magna (Dip. Matematica)
Ora Inizio: 
Saturday, January 1, 0000

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