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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Fiber-connected, indefinite Morse 2-functions on connected n-manifolds
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Fiber-connected, indefinite Morse 2-functions on connected n-manifolds

机译:相连的n流形上的光纤连接的不确定Morse 2函数

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摘要

We discuss generic smooth maps from smooth manifolds to smooth surfaces, which we call "Morse 2-functions," and homoto-pies between such maps. The two central issues are to keep the fibers connected, in which case the Morse 2-function is "fiber-connected," and to avoid local extrema over one-dimensional submanifolds of the range, in which case the Morse 2-function is "indefinite." This is foundational work for the long-range goal of defining smooth invariants from Morse 2-functions using tools analogous to classical Morse homology and Cerf theory.
机译:我们讨论了从平滑流形到平滑曲面的通用平滑贴图,我们称其为“莫尔斯2函数”,以及此类贴图之间的同伦。两个主要问题是保持光纤连接(在这种情况下,莫尔斯2函数是“光纤连接的”),以及避免在范围的一维子流形上出现局部极值,在这种情况下,莫尔斯2函数是“不定。”这是使用类似于经典摩尔斯同源性和瑟夫理论的工具从摩尔斯2函数定义光滑不变量的长期目标的基础性工作。

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