Faithfully Quadratic Rings(Memoirs of the American Mathematical Society)

如实二次环(丛书)

数论

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作      者
出版时间
2015年12月30日
装      帧
平装
ISBN
9781470414689
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页      码
129
语      种
英文
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图书简介
In this monograph the authors extend the classical algebraic theory of quadratic forms over fields to diagonal quadratic forms with invertible entries over broad classes of commutative, unitary rings where $-1$ is not a sum of squares and $2$ is invertible. They accomplish this by: (1) Extending the classical notion of matrix isometry of forms to a suitable notion of $T$-isometry, where $T$ is a preorder of the given ring, $A$, or $T = A^2$. (2) Introducing in this context three axioms expressing simple properties of (value) representation of elements of the ring by quadratic forms, well-known to hold in the field case.
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