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arXiv 2101.00367math.GT
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关于奇异4-流形族的注记

A note on exotic families of 4-manifolds

Tsuyoshi Kato, Hokuto Konno, Nobuhiro Nakamura

摘要:

本文给出了圆上的一对光滑纤维丛,它们具有一个共同的$4$维纤维,并且具有以下性质:(1)它们的全空间彼此同构;(2)它们作为拓扑纤维丛彼此同构;(3)它们作为光滑纤维丛彼此不同构.特别是,我们展示了一个例子与非简单连接的纤维。

英文摘要:

We present a pair of smooth fiber bundles over the circle with a common $4$-dimensional fiber with the following properties: (1) their total spaces are diffeomorphic to each other; (2) they are isomorphic to each other as topological fiber bundles; (3) they are not isomorphic to each other as smooth fiber bundles. In particular, we exhibit an example with non-simply-connected fiber.

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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