The Rational Cohomology of the Mapping Class Group Vanishes in its Virtual Cohomological Dimension
The Rational Cohomology of the Mapping Class Group Vanishes in its Virtual Cohomological Dimension
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映射类群的有理上同调在其虚拟上同调维数中消失
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发表时间:
2011
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通讯作者:
Andrew Putman
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作者:
Thomas Church;B. Farb;Andrew Putman
Let Mod_g be the mapping class group of a genus g >= 2 surface. The group Mod_g has virtual cohomological dimension 4g-5. In this note we use a theorem of Broaddus and the combinatorics of chord diagrams to prove that H^{4g-5}(Mod_g; Q) = 0.
DOI:
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发表时间:
2014
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作者:
Ochiai;Emiko;Kayoko Ueno et al;Takuya Sakasai
通讯作者:
Takuya Sakasai
DOI:
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发表时间:
2022
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