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About: Arf invariant     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:WikicatQuadraticForms, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: yago:WikicatTurkishInventionsyago:Ability105616246yago:Abstraction100002137yago:Cognition100023271yago:Creativity105624700yago:Form106290637yago:Invention105633385yago:LanguageUnit106284225yago:Part113809207yago:PsychologicalFeature100023100yago:Relation100031921yago:Word106286395yago:WikicatQuadraticForms New Facet based on Instances of this Class

In mathematics, the Arf invariant of a nonsingular quadratic form over a field of characteristic 2 was defined by Turkish mathematician Cahit Arf when he started the systematic study of quadratic forms over arbitrary fields of characteristic 2. The Arf invariant is the substitute, in characteristic 2, for the discriminant for quadratic forms in characteristic not 2. Arf used his invariant, among others, in his endeavor to classify quadratic forms in characteristic 2.