Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Crepant_resolution> ?p ?o. }
Showing items 1 to 17 of
17
with 100 items per page.
- Crepant_resolution abstract "In algebraic geometry, a crepant resolution of a singularity is a resolution that does not affect the canonical class of the manifold. The term "crepant" was coined by Miles Reid (1983) by removing the prefix "dis" from the word "discrepant", to indicate that the resolutions have no discrepancy in the canonical class.The crepant resolution conjecture of Ruan (2006) states that the orbifold cohomology of a Gorenstein orbifold is isomorphic to a semiclassical limit of the quantum cohomology of a crepant resolution.In 2 dimensions, crepant resolutions of complex Gorenstein quotient singularities (du Val singularities) always exist and are unique, in 3 dimensions they exist but need not be unique as they can be related by flops, and in dimensions greater than 3 they need not exist.A substitute for crepant resolutions which always exists is a terminal model. Namely, for every variety X over a field of characteristic zero such that X has canonical singularities (for example, rational Gorenstein singularities), there is a variety Y with Q-factorial terminal singularities and a birational projective morphism f: Y → X which is crepant in the sense that KY = f*KX.".
- Crepant_resolution wikiPageID "21698103".
- Crepant_resolution wikiPageRevisionID "572202623".
- Crepant_resolution authorlink "Miles Reid".
- Crepant_resolution first "Miles".
- Crepant_resolution hasPhotoCollection Crepant_resolution.
- Crepant_resolution last "Reid".
- Crepant_resolution year "1983".
- Crepant_resolution subject Category:Algebraic_geometry.
- Crepant_resolution subject Category:Singularity_theory.
- Crepant_resolution comment "In algebraic geometry, a crepant resolution of a singularity is a resolution that does not affect the canonical class of the manifold.".
- Crepant_resolution label "Crepant resolution".
- Crepant_resolution sameAs m.05mqtkg.
- Crepant_resolution sameAs Q5184228.
- Crepant_resolution sameAs Q5184228.
- Crepant_resolution wasDerivedFrom Crepant_resolution?oldid=572202623.
- Crepant_resolution isPrimaryTopicOf Crepant_resolution.