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Specialization of quadratic and symmetric bilinear forms, and a norm theorem. (English) Zbl 0287.15010


MSC:

15A63 Quadratic and bilinear forms, inner products
15A60 Norms of matrices, numerical range, applications of functional analysis to matrix theory
11E16 General binary quadratic forms
12E05 Polynomials in general fields (irreducibility, etc.)
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