Siegel der Universität Augsburg

Universität Augsburg
Institut für Mathematik

Siegel der Universität Augsburg

 

Oberseminar Differentialgeometrie

 

Dr. Alexey Balitskiy
Universität Luxemburg

 
spricht am
 
Montag, 22. April 2024
 
um
 
16 Uhr s.t.
 
im
 
Raum 2004 (L1)
 
über das Thema:
 

»100 years of the Urysohn width«

Abstract:
In 1923, the Soviet mathematician Pavel Urysohn proposed a notion of approximate dimension, which is now known as the Urysohn width. The d-width of a metric space quantifies how close it can be approximated by a d-dimensional simplicial complex. This notion was introduced to measure dimensionality (though to an extent it fails to do so), used in approximation theory, appeared in the work of Gromov on systolic geometry, and nowadays it is a metric invariant of independent interest. I will introduce the width, and survey some of the highlights of its history and its connections to systoles, waists, sweepouts, curvature, and persistence.

 

Hierzu ergeht herzliche Einladung.
Prof. Dr. Bernhard Hanke
 

Kaffee, Tee und Gebäck eine halbe Stunde vor Vortragsbeginn im Raum 2006 (L1).



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