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Four-dimensional quadratic forms over C((t))(X)

GUPTA, PARUL (Springer Nature, 2021-06)

For quadratic forms in 4 variables defined over the rational function field in one variable over C((t)), the validity of the local-global principle for isotropy with respect to different sets of discrete valuations is examined.
Square-reflexive polynomials

Becher, Karim Johannes; GUPTA, PARUL (Elsevier B.V., 2021-10)

For a field E of characteristic different from 2 and cohomological 2-dimension one, quadratic forms over the rational function field are studied. A characterisation in terms of polynomials in is obtained for having that ...

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