Whitney Disk
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High Quality Content by WIKIPEDIA articles! In mathematics, given two submanifolds A and B of a manifold X intersecting in two points p and q, a Whitney disc is a mapping from the two-dimensional disc D, with two marked points, to X, such that the two marked points go to p and q, one boundary arc of D goes to A and the other to B. Their existence and embeddedness is crucial in proving the cobordism theorem, where it is used to cancel the intersection points; and its failure in low dimensions corresponds to not being able to embed a Whitney disc. Casson handles are an important technical tool for constructing the embedded Whitney disc relevant to many results on topological four-manifolds.
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GarantieWeitere Informationen
- Allgemeine Informationen
- GTIN 09786131169465
- Editor Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
- EAN 9786131169465
- Format Fachbuch
- Titel Whitney Disk
- Herausgeber Betascript Publishing
- Anzahl Seiten 112
- Genre Mathematik
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