We generalize to higher algebraic
-theory
an identity (originally due to Milnor) that relates the Reidemeister torsion of an
infinite cyclic cover to its Lefschetz zeta function. Our identity involves a higher
torsion invariant, the
endomorphism torsion, of a parametrized family of
endomorphisms as well as a
higher zeta function of such a family. We also exhibit
several examples of families of endomorphisms having nontrivial endomorphism
torsion.
Keywords
zeta function, Reidemeister torsion, $K\mkern-2mu$-theory
of endomorphisms