[CvGmt News] GFO-Pisa Seminars - Monday/Tuesday 11/12 May 2009

[Carlo Mantegazza]

Talks of 11-12/5/09, at 17.00 in Aula Dini of the Scuola Normale 
Superiore, Palazzo del Castelletto, in connection with the
research trimester "Geometric Flows and Geometric Operators"
at the Centro De Giorgi in Pisa:


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11 May 2009 - Paul Lee, University of Toronto

Generalized Ricci Curvature Bounds for Three Dimensional Contact 
Subriemannian Manifolds

Abstract: Measure contraction property (MCP) is one of the possible 
generalizations of Ricci curvature bound to more general metric measure 
spaces. However, the definition of MCP is not computable in general. In 
this talk, I will discuss computable sufficient conditions for a three 
dimensional contact subriemannian manifold to satisfy such property.
This is a joint work with Andrei Agrachev.
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12 May 2009 - Andrea Mondino, SISSA Trieste

The Willmore Functional, a Perturbative Approach

Given a surface M immersed in a Riemannian manifold (M,g) of dimension 
three, the Willmore functional I is defined as I(M)=\int_M H^2 dS where H 
is the mean curvature and dS the area form given by the immersion.
The critical points of I are called Willmore surfaces and the aim of the 
seminar is to study the existence of such surfaces.
The topic is classical and has many applications (general relativity, 
biology, elasicity theory...); after an introduction about the employed 
method (it is performed a finite dimentional reduction) we will study the 
functional in a perturbative setting.
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