English

A Boundary Operator for Simplices

Geometric Topology 2011-09-13 v1 Algebraic Topology

Abstract

We generalize the very well known boundary operator of the ordinary singular homology theory, defined in many books about algebraic topology. We describe a variant of this ordinary simplicial boundary operator where the usual boundary (n-1)-simplices of each n-simplex are replaced by combinations of internal (n-1)- simplices parallel to the faces. This construction may lead to an infinite class of extraordinary non-isomorphic homology theories. We show further some interesting constructions on the standard simplex.

Keywords

Cite

@article{arxiv.1109.2161,
  title  = {A Boundary Operator for Simplices},
  author = {Volker W. Thürey},
  journal= {arXiv preprint arXiv:1109.2161},
  year   = {2011}
}

Comments

33 pages, 17 figures and diagrams

R2 v1 2026-06-21T19:02:51.641Z