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Abstract:

We show that there exists a correspondence between the equivalence classes of coverings of a polyhedron and the equivalence classes of coverings of its poset of simplices. The same is true for a poset and its order complex. The coverings of a poset can be understood in two equivalent ways, as categorical coverings, when the poset is viewed as a category, or as topological coverings, when it is viewed as an A-space. This implies that the theory of coverings of polyhedra can be handled completely in the combinatorial setting. © 2016, International Press.

Registro:

Documento: Artículo
Título:A note on coverings of posets, a-spaces and polyhedra
Autor:Barmak, J.A.; Minian, E.G.
Filiación:Departamento de Matemática - IMAS, FCEyN, Universidad de Buenos Aires, Buenos Aires, Argentina
Palabras clave:A-space; Covering map; Poset; Simplicial complex
Año:2016
Volumen:18
Número:1
Página de inicio:143
Página de fin:150
DOI: http://dx.doi.org/10.4310/hha.2016.v18.n1.a8
Título revista:Homology, Homotopy and Applications
Título revista abreviado:Homology Homotopy Applic.
ISSN:15320073
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15320073_v18_n1_p143_Barmak

Referencias:

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Citas:

---------- APA ----------
Barmak, J.A. & Minian, E.G. (2016) . A note on coverings of posets, a-spaces and polyhedra. Homology, Homotopy and Applications, 18(1), 143-150.
http://dx.doi.org/10.4310/hha.2016.v18.n1.a8
---------- CHICAGO ----------
Barmak, J.A., Minian, E.G. "A note on coverings of posets, a-spaces and polyhedra" . Homology, Homotopy and Applications 18, no. 1 (2016) : 143-150.
http://dx.doi.org/10.4310/hha.2016.v18.n1.a8
---------- MLA ----------
Barmak, J.A., Minian, E.G. "A note on coverings of posets, a-spaces and polyhedra" . Homology, Homotopy and Applications, vol. 18, no. 1, 2016, pp. 143-150.
http://dx.doi.org/10.4310/hha.2016.v18.n1.a8
---------- VANCOUVER ----------
Barmak, J.A., Minian, E.G. A note on coverings of posets, a-spaces and polyhedra. Homology Homotopy Applic. 2016;18(1):143-150.
http://dx.doi.org/10.4310/hha.2016.v18.n1.a8