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Magma
Computer • algebra
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Introduction
Constructions and Conversions
SymmetricMatrix(f) : RngMPolElt -> Mtrx
GramMatrix(L) : Lat -> Mtrx
QuadraticForm(L) : Lat -> RngMPolElt
QuadraticForm(M) : Mtrx -> RngMPolElt
Local Invariants
pSignature(f,p) : RngMPolElt, RngIntElt -> RngIntElt
Oddity(f) : RngMPolElt -> RngIntElt
pExcess(f, p) : RngMPolElt, RngIntElt -> RngIntElt
WittInvariant(f, p) : RngMPolElt, RngIntElt -> RngIntElt
WittInvariants(f) : RngMPolElt -> SeqEnum
Isotropic Subspaces
IsotropicSubspace(f) : RngMPolElt -> ModTupRng
Example
QuadForm_isotropy-and-witt (H34E1)
Example
QuadForm_second-example-Witt (H34E2)
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V2.28, 13 July 2023