Simplification techniques for maps in simplicial topology
This paper offers an algorithmic solution to the problem of obtaining “economical” formulae for some maps in Simplicial Topology, having, in principle, a high computational cost in their evaluation. In particular, maps of this kind are used for defining cohomology operations at the cochain level. As...
| Autores: | , |
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| Formato: | artículo |
| Fecha de publicación: | 2005 |
| País: | España |
| Recursos: | Universidad de Sevilla (US) |
| Repositorio: | idUS. Depósito de Investigación de la Universidad de Sevilla |
| OAI Identifier: | oai:idus.us.es:11441/30797 |
| Acesso em linha: | http://hdl.handle.net/11441/30797 https://doi.org/doi:10.1016/j.jsc.2004.04.008 |
| Access Level: | acceso abierto |
| Palavra-chave: | Cohomology operations Simplicial sets Face and degeneracy operators |
| Resumo: | This paper offers an algorithmic solution to the problem of obtaining “economical” formulae for some maps in Simplicial Topology, having, in principle, a high computational cost in their evaluation. In particular, maps of this kind are used for defining cohomology operations at the cochain level. As an example, we obtain explicit combinatorial descriptions of Steenrod View the MathML sourcekth powers exclusively in terms of face operators. |
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