### A Gelfand-Beurling formula for heights on endomorphism rings, by Valerio Talamanca

In this paper we prove a limit formula for heights on the endomorphism ring of a vector space
over a number field.
This limit formula can be considered as the analogue for both the
Gelfand-Beurling formula for the
spectral radius on a Banach Algebra and Tate's averaging
procedure for constructing canonical heights on Abelian Varieties.

Valerio Talamanca <valerio@matrm3.mat.uniroma3.it>