Embedding problems and equivalence of quadratic forms

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If the obstruction to a Galois theoretical embedding problem with kernel of order 2 is the product of two quaternion classes, the criterion for solvability can be reformulated as an equivalence of quadratic forms. In some cases the solutions to the embedding problem can be constructed directly from a matrix expressing this equivalence.

Original languageEnglish
Pages (from-to)279-302
Number of pages24
JournalMathematica Scandinavica
Issue number2
StatePublished - 2001


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