谭强波.局部标准2-torus作用和带角流形[J].数学年刊A辑,2009,30(3):333~338 |
局部标准2-torus作用和带角流形 |
Locally Standard 2-Torus Actions and Manifold with Corners |
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DOI: |
中文关键词: 2-torus作用 局部标准作用 带角流形 |
英文关键词:2-torus action, Locally standard action, Manifold with corners |
基金项目:国家自然科学基金(N0.10671034)资助的项目 |
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中文摘要: |
给出了光滑闭流形上的光滑2-torus作用是局部标准的一个充要条件,即其轨道空间是好的带角流形,并且对轨道空间中的每一个点,其迷向子群的秩等于该点的余维数. |
英文摘要: |
This paper studies the relationship between the 2-torus action on a closed manifold
and the manifold with corners, and gives a necessary and sufficient condition in which
the action is locally standard. The condition is that the orbit space of the action is a nice
manifold with corners, and for every point in it, the rank of its isotropy subgroup equals to
its codimension. |
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