Dynamical Zeta Functions, Nielsen theory and Reidemeister torsion

Abstract

The paper consists of four parts. Part I presents a brief survey of the Nielsen fixed point theory. Part II deals with dynamical zeta functions connected with Nielsen fixed point theory. Part III is concerned with congruences for the Reidemeister and Nielsen numbers. Part IV deals with the Reidemeister torsion . In Chapter 2 we prove that the Reidemeister zeta function of a group endomorphism is a rational function with functional equation in the following cases: the group is finitely generated and an endomorphism is eventually commutative; the group is finite ; the group is a direct sum of a finite group and a finitely generated free abelian group; the group is finitely generated, nilpotent and torsion free. In Chapter 3 we show that the Nielsen zeta function has a positive radius of convergence which admits a sharp estimate in terms of the topological entropy of the map. For a periodic map of a compact polyhedron we prove that Nielsen zeta function is a radical of a rational function. In sect ion 3.4 and 3.5 we give sufficient conditions under which the Nielsen zeta function coincides with the Reidemeister zeta function and is a rational function with functional equation. In Chapter 5 we prove analog of Dold congruences for Reidemeister and Nielsen numbers. In section 6.2 we establish a connection between the Reidemeister torsion and Reidemeister zeta function. In section 6.3 we establish a connection between the Reidemeister torsion of a mapping torus, the eta-invariant, the Rochlin invariant and the multipliers of the theta function. In section 6.4 we describe with the help of the Reidemeister torsion the connection between the topology of the attraction domain of an attractor and the dynamic of the system on the attractor.