Ludwig Schläfli lecture 2018
Monday November 19th, 2018, 17:15 University of Bern, Main Building, Hochschulstrasse 4, Room 120 (first floor, on the West side). Coffee and tea starts at 16:30, ground floor of Main building, on the West side. |
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Tamar Ziegler Einstein Institute of Mathematics The Hebrew University of Jerusalem |
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Approximate cohomology: from dynamics to algebraic geometry
Say that a function f from an abelian group G to
Hom(V,W) is an approximate homomorphism if
f(x+y)-f(x)-f(y) is of bounded rank uniformly for
all x,y in G. Is there a homomorphism
h such that (f-h)(x) is of bounded rank for all
x in G ? We demonstrate how this question is naturally related to questions in arithmetic combinatorics, dynamics and algebraic geometry. |
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The Ludwig Schläfli lecture takes place every two years
since 2006 (in even years) at the University of Bern; it is a
joint colloquium with the University of Fribourg, who organizes
the Plancherel Lectures in odd years.
The lecture is named after Ludwig
Schläfli, who was a member of the mathematics department of the
University of Bern between 1848 and 1891. This year, there is a special exhibition
about his life and works.
The Schläfli lecture is an excellent opportunity
for mathematicians from Swiss universities to meet and
learn about new directions of research in mathematics.
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Design by Emanuele Delucchi |