On the composition of nondegenerate quadratic forms with an arbitrary index
Julian Ławrynowicz, Jakub Rembieliński (1990)
Annales de la Faculté des sciences de Toulouse : Mathématiques
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Julian Ławrynowicz, Jakub Rembieliński (1990)
Annales de la Faculté des sciences de Toulouse : Mathématiques
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Jan Cnops (1996)
Banach Center Publications
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After an overview of Hurwitz pairs we are showing how to actually construct them and discussing whether, for a given representation, all Hurwitz pairs of the same type are equivalent. Finally modules over a Clifford algebra are considered with compatible inner products; the results being then aplied to Hurwitz pairs.
Alexander Vishik (2011)
Annales scientifiques de l'École Normale Supérieure
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In this article we prove the conjecture claiming that the motive of a real quadric is the “most decomposable” among anisotropic quadrics of given dimension over fields. This imposes severe restrictions on the motive of arbitrary anisotropic quadric. As a corollary we estimate from below the rank of indecomposable direct summand in the motive of a quadric in terms of its dimension. This generalizes the well-known Binary Motive Theorem. Moreover, we have the description of the Tate motives...
R. Brauer (1964)
Acta Arithmetica
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Knus, Max-Albert, Villa, Oliver (2001)
Documenta Mathematica
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G. Pall (1964)
Acta Arithmetica
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Wieb Bosma, Peter Stevenhagen (1996)
Journal de théorie des nombres de Bordeaux
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We describe an algorithm due to Gauss, Shanks and Lagarias that, given a non-square integer mod and the factorization of , computes the structure of the -Sylow subgroup of the class group of the quadratic order of discriminant in random polynomial time in .
Hahn, Alexander (2001)
Documenta Mathematica
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Sabadini, Irene, Sommen, Frank, Struppa, Daniele C. (2003)
Experimental Mathematics
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