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Keywords:
Witt ring; orders in number fields; bilinear forms on ideals
Witt ring; orders in number fields; bilinear forms on ideals
Summary:
We prove that there are infinitely many real quadratic number fields $K$ with the property that for infinitely many orders $\mathcal {O}$ in $K$ and for the maximal order $R$ in $K$ the natural homomorphism $\varphi :W\mathcal {O}\rightarrow WR$ of Witt rings is surjective.
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References:
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