Averaging formulas for the Reidemeister trace, Lefschetz and Nielsen numbers of -valued maps
arXiv:2409.17794 · doi:10.1007/s11784-025-01194-3
Abstract
For an -valued self-map of a closed manifold , we prove an averaging formula for the Reidemeister trace of in terms of the Reidemeister coincidence traces of single-valued maps between finite orientable covering spaces of . We then derive analogous formulas for the Lefschetz and Nielsen numbers of . In the special case where is an infra-nilmanifold, we obtain explicit formulas for the Lefschetz and Nielsen numbers of any -valued map on .