On Complements of Convex Polyhedra as Polynomial and Regular Images of Rn

In this work we prove constructively that the complement Rn \ K of a convex polyhedron K ⊂ Rn and the complement Rn \ Int(K) of its interior are regular images of Rn. If K is moreover bounded, we can assure that Rn \ K and Rn \ Int(K) are also polynomial images of Rn. The construction of such regula...

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Detalles Bibliográficos
Autores: Fernando Galván, José Francisco, Ueno, Carlos
Tipo de recurso: artículo
Fecha de publicación:2013
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/33762
Acceso en línea:https://hdl.handle.net/20.500.14352/33762
Access Level:acceso abierto
Palabra clave:512.7
Glbal Optimization
Squeres
Sums
R-2
Geometria algebraica
1201.01 Geometría Algebraica
Descripción
Sumario:In this work we prove constructively that the complement Rn \ K of a convex polyhedron K ⊂ Rn and the complement Rn \ Int(K) of its interior are regular images of Rn. If K is moreover bounded, we can assure that Rn \ K and Rn \ Int(K) are also polynomial images of Rn. The construction of such regular and polynomial maps is done by double induction on the number of facets (faces of maximal dimension) and the dimension of K; the careful placing (first and second trimming positions) of the involved convex polyhedra which appear in each inductive step has interest by its own and it is the crucial part of our technique.