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arXiv math/0012050math.LOmath.AT
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O-极小上同调与可定义紧可定义群

O-minimal cohomology and definably compact definable groups

Mario J. Edmundo

摘要:

设N是一个实封闭的域的O-极小展开。我们发展了N-可定义流形和N-可定义映射范畴的上同调理论,并利用它解决了N-可定义紧N-可定义阿贝尔群上扭点存在性的Peterzil-Steinhorn问题.我们计算了N-可定义紧N-可定义群的上同调环,证明了Poincare对偶定理、Alexander对偶定理、Lefschetz对偶定理和Lefschetz不动点定理的一个o-极小模拟.

英文摘要:

Let N be an o-minimal expansion of a real closed field. We develop cohomology theory for the category of N-definable manifolds and N-definable maps, and use this to solve the Peterzil-Steinhorn problem on the existence of torsion points on N-definably compact N-definable abelian groups. We compute the cohomology rings of N-definably compact N-definable groups, and we prove an o-minimal analog of the Poincare duality theorem, the Alexander dualti theorem, the Lefschetz duality theorem and the Lefschetz fixed point theorem.

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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