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Signed fundamental domains for number fields

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Speaker: 
Milton Espinoza
Affiliation: 
MPI
Date: 
Thu, 2017-12-14 15:00 - 16:00
Location: 
MPIM Lecture Hall
Parent event: 
MPI-Oberseminar

The usual embedding of a number field K into a Euclidean space V gives rise to an action of
the units of K on V.  Good fundamental domains for this action are important in the study of
abelian L-functions. However, they are usually hard to come by. In this talk, we will describe
a method to deform easy but useless fundamental domains into signed versions of good ones.
This is a joint work with Eduardo Friedman.

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