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Open Access

Nielsen number of a covering map

Fixed Point Theory and Applications20062006:37807

Received: 23 November 2004

Accepted: 24 July 2005

Published: 26 February 2006


We consider a finite regular covering over a compact polyhedron and a map admitting a lift . We show some formulae expressing the Nielsen number as a linear combination of the Nielsen numbers of its lifts.


Differential GeometryComputational BiologyNielsen Number


Authors’ Affiliations

Department of Mathematics, University of Agriculture, Nowoursynowska 159Warszawa, Poland


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© Jerzy Jezierski. 2006

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.