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Indecomposable rank 4 quadratic spaces of non-trivial discriminant over polynomial rings

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In memory of Singbal

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Parimala, R., Sridharan, R. Indecomposable rank 4 quadratic spaces of non-trivial discriminant over polynomial rings. Math Z 183, 281–292 (1983). https://doi.org/10.1007/BF01176472

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