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- Hasse–Minkowski_theorem abstract "The Hasse–Minkowski theorem is a fundamental result in number theory which states that two quadratic forms over a number field are equivalent if and only if they are equivalent locally at all places, i.e. equivalent over every completion of the field (which may be real, complex, or p-adic). A special case is that a quadratic space over a number field is isotropic if and only if it is isotropic locally everywhere, or equivalently, that a quadratic form over a number field nontrivially represents zero if and only if this holds for all completions of the field. The theorem was proved in the case of the field of rational numbers by Hermann Minkowski and generalized to number fields by Helmut Hasse. The same statement holds even more generally for all global fields.The importance of the Hasse–Minkowski theorem lies in the novel paradigm it presented for answering arithmetical questions: in order to determine whether an equation of a certain type has a solution in rational numbers, it is sufficient to test whether it has solutions over complete fields of real and p-adic numbers, where analytic considerations, such as Newton's method and its p-adic analogue, Hensel's lemma, apply. This is encapsulated in the idea of a local-global principle, which is one of the most fundamental techniques in arithmetic geometry.".
- Hasse–Minkowski_theorem wikiPageID "1109126".
- Hasse–Minkowski_theorem wikiPageRevisionID "551254812".
- Hasse–Minkowski_theorem subject Category:Quadratic_forms.
- Hasse–Minkowski_theorem subject Category:Theorems_in_number_theory.
- Hasse–Minkowski_theorem comment "The Hasse–Minkowski theorem is a fundamental result in number theory which states that two quadratic forms over a number field are equivalent if and only if they are equivalent locally at all places, i.e. equivalent over every completion of the field (which may be real, complex, or p-adic).".
- Hasse–Minkowski_theorem label "Hasse–Minkowski theorem".
- Hasse–Minkowski_theorem label "Stelling van Hasse-Minkowski".
- Hasse–Minkowski_theorem sameAs Hasse%E2%80%93Minkowski_theorem.
- Hasse–Minkowski_theorem sameAs 하세-민코프스키_정리.
- Hasse–Minkowski_theorem sameAs Stelling_van_Hasse-Minkowski.
- Hasse–Minkowski_theorem sameAs Q1938251.
- Hasse–Minkowski_theorem sameAs Q1938251.
- Hasse–Minkowski_theorem wasDerivedFrom Hasse–Minkowski_theorem?oldid=551254812.