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arXiv 2212.07548math.DG
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曲率算子与有理配边

Curvature operators and rational cobordism

Renato G. Bettiol, McFeely Jackson Goodman

AI总结:

本文通过曲率算子特征值的线性不等式,构造了使扭曲 $\hat A$ 亏格及多种有理配边不变量消失的手术稳定曲率条件。

摘要:

我们确定了曲率算子特征值上的线性不等式,这些不等式蕴含了闭合黎曼自旋流形上扭曲 $\hat A$ 亏格的消失,其中扭曲丛是任意指定的平行张量丛。这些不等式给出了手术稳定的曲率条件,专门用于消去进一步的有理配边不变量,例如 Witten 亏格、椭圆亏格、符号差,甚至有理配边类本身。

英文摘要:

We determine linear inequalities on the eigenvalues of curvature operators that imply vanishing of the twisted $\hat A$ genus on a closed Riemannian spin manifold, where the twisting bundle is any prescribed parallel bundle of tensors. These inequalities yield surgery-stable curvature conditions tailored to annihilate further rational cobordism invariants, such as the Witten genus, elliptic genus, signature, and even the rational cobordism class itself.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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