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Speaker:

Radu Toma
Affiliation:

Universität Bonn
Date:

Wed, 2020-02-05 16:30 - 17:30
Location:

MPIM Lecture Hall
Parent event:

Number theory lunch seminar Given a positive definite integral binary quadratic form, it is a classical problem in number theory to count the integers that are represented by this form. A modern treatment was given in 2006 by Valentin Blomer and Andrew Granville.

This talk will present a way of extending a theorem of Blomer and Granville to obtain estimates for counting proper representations uniform in the (possibly non-fundamental) discriminant. Subsequently, I will give a sketch of how these estimates were used by Jean Bourgain and Elena Fuchs (2011) in proving the positive density conjecture for Apollonian circle packings.

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