Explicit resolutions of double point singularities of surfaces.

Título inglés	Explicit resolutions of double point singularities of surfaces.
Título español	Resoluciones explícitas de singularidades de doble punto de superficies.
Autor/es	Calabri, Alberto ; Ferraro, Rita
Organización	Dip. Mat. Univ. Roma Tor Vergata, Roma, Italia; Dip. Mat. Univ. Roma Tre, Roma, Italia
Revista	0010-0757
Publicación	2002, 53 (2): 99-131, 22 Ref.
Tipo de documento	articulo
Idioma	Inglés
Resumen inglés	Locally analytically, any isolated double point occurs as a double cover of a smooth surface. It can be desingularized explicitly via the canonical resolution, as it is very well-known. In this paper we explicitly compute the fundamental cycle of both the canonical and minimal resolution of a double point singularity and we classify those for which the fundamental cycle differs from the fiber cycle. Moreover we compute the conditions that a double point singularity imposes to pluricanonical systems.
Clasificación UNESCO	120101
Palabras clave español	Superficies ; Singularidades ; Punto doble
Código MathReviews	MR1913513
Código Z-Math	Zbl 1043.14007
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