Critical elements of proper discrete Morse functions

The aim of this paper is to study the notion of critical element of a proper discrete Morse function defined on non-compact graphs and surfaces. It is an extension to the non-compact case of the concept of critical simplex which takes into account the monotonous behaviour of a function at the ends o...

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Detalhes bibliográficos
Autores: Ayala Gómez, Rafael, Fernández Fernández, Luis Manuel, Vilches Alarcón, José Antonio
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2008
País:España
Recursos:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/45081
Acesso em linha:http://hdl.handle.net/11441/45081
Access Level:acceso abierto
Palavra-chave:Discrete Morse function
Discrete Morse inequalities
Locally finite complex
Critical simplex
Decreasing ray
Descrição
Resumo:The aim of this paper is to study the notion of critical element of a proper discrete Morse function defined on non-compact graphs and surfaces. It is an extension to the non-compact case of the concept of critical simplex which takes into account the monotonous behaviour of a function at the ends of a complex. We show how the number of critical elements are related to the topology of the complex.