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  • Research Article
  • Open Access

Estimating Nielsen Numbers on Wedge Product Spaces

Fixed Point Theory and Applications20082007:083420

  • Received: 8 May 2007
  • Accepted: 14 November 2007
  • Published:


Let be a self-map of a finite polyhedron that is an aspherical wedge product space . In this paper, we estimate the Nielsen number of . In particular, we study some algebraic properties of the free products and then estimate Nielsen numbers on torus wedge surface with boundary, Klein bottle wedge surface with boundary, and torus wedge torus.


  • Differential Geometry
  • Product Space
  • Computational Biology
  • Wedge Product


Authors’ Affiliations

Department of Mathematics, University of Connecticut, Storrs, CT 06269, USA
School of Mathematics, Korea Institute for Advanced Study, Seoul, 130722, South Korea


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© N. Khamsemanan and S.W. Kim. 2007

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.