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Trace formulae, Zeta functions, congruences and Reidemeister torsion in Nielsen theory

  • Alexander Fel'shtyn EMAIL logo and Richard Hill
Published/Copyright: March 11, 2008
Forum Mathematicum
From the journal Volume 10 Issue 6

Abstract

In this paper we prove trace formulae for the Reidemeister number of a group endomorphism. This result implies the rationality of the Reidemeister zeta function in the following cases: the group is a direct product of a finite group and a finitely generated Abelian group; the group is finitely generated, nilpotent and torsion free. We connect the Reidemeister zeta function of an endomorphism of a direct product of a finite group and a finitely generated free Abelian group with the Lefschetz zeta function of the induced map on the unitary dual of the group. As a consequence we obtain a relation between a special value of the Reidemeister zeta function and a certain Reidemeister torsion. We also prove congruences for Reidemeister numbers of iterates of an endomorphism of a direct product of a finite group and a finitely generated free Abelian group which are the same as those found by Dold for Lefschetz numbers.


(Communicated by Andrew Ranicki)


Received: 1996-09-25
Revised: 1998-01-04
Accepted: 1998-01-26
Published Online: 2008-03-11
Published in Print: 1998-11-01

© Walter de Gruyter

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