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作者
Potervens ()
看板
Math
標題
[分析] differentiable structures
時間
Sun Apr 5 10:28:49 2009
Show that the 7-dimensional sphere S^7 = { p in |R^8 : |p| = 1 } has exactly 28 different differentiable structures. --
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推
herstein
:
http://www.maths.ed.ac.uk/~aar/papers/exotic.pdf
04/05 11:51
→
herstein
:
http://www.maths.ed.ac.uk/~aar/papers/plumb.pdf
04/05 11:51
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Potervens
:再研究看看 謝謝
04/05 17:04