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Deformations with respect to an algebraic group. - MaRDI portal

Deformations with respect to an algebraic group. (Q1409640)

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scientific article; zbMATH DE number 1993661
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Deformations with respect to an algebraic group.
scientific article; zbMATH DE number 1993661

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    Deformations with respect to an algebraic group. (English)
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    16 October 2003
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    Let \(\mathcal G\) be a smooth linear algebraic group over the ring of Witt vectors of a finite field \(k\). Deformations of representations of a profinite group into \({\mathcal G}(k)\) are studied.
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    deformations of representations
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    rings of Witt vectors
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    linear algebraic groups
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    profinite groups
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    versal deformation rings
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    deformation functors
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    orthogonal groups
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    Stiefel-Whitney classes
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    spinor norms
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    Hasse-Witt invariants
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    orthogonal Galois representations
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