Monthly Archives: May 2012

Notes of Alessandro Ottazzi’s lecture nr 3

Posted on May 11, 2012 by metric2011

1. Liouville’s theorem Let be a conformal map on an open domain of , . Observe that is conformal if and only if at every point , belongs to the conformal group such that . In other words, is an … Continue reading →

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Notes of Alessandro Ottazzi’s lecture nr 2

Posted on May 9, 2012 by metric2011

Quasiconformal maps on Carnot groups This survey is a break in the mini-course. It contains results of a metric nature (quasiconformality belongs to metric geometry). 1. Inspiring classical results Theorem 1 (Liouville 1850) Every smooth conformal map of an open … Continue reading →

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Notes of Alessandro Ottazzi’s lecture nr 1

Posted on May 8, 2012 by metric2011

Mini course on Tanaka prolongation Alessandro Ottazzi own notes of this minicourse can be found here. Extends Singer and Sternberg’s theory (late sixties). Its goal is to understand the equivalence problem and deformations of -structures. In the seventies, Tanaka adapted … Continue reading →

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Slides of Mario Sigalotti’s talk

Posted on May 3, 2012 by metric2011

Yesterday, I missed Mario Sigalotti’s talk on Gauss-Bonnet for almost Riemannian surfaces. Here are his slides.

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