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arXiv math/0010121math.AT
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自同伦等价群的子群

Subgroups of the group of self-homotopy equivalences

M. Arkowitz, G. Lupton, A. Murillo

摘要:

用E(Y)表示有限维复形Y的自同伦等价的同伦类群。本文给出了E(Y)的某些子群的一些结果。我们建立了Y的Gottlieb群和E(Y)的子群之间的联系,E(Y)的子群由自同伦等价的同伦类组成,这些同伦等价通过Y的维数固定同伦群,记为E_#(Y)。利用Y的锥分解给出了E_#(Y)的可解类的一个上界。我们对偶后者的结果,以获得一个上界的可解类的子群E(Y)的自同伦等价,固定上同调群与各种系数的同伦类。我们还表明,与整数系数,后者组是幂零的。

英文摘要:

Denote by E(Y) the group of homotopy classes of self-homotopy equivalences of a finite-dimensional complex Y. We give a selection of results about certain subgroups of E(Y). We establish a connection between the Gottlieb groups of Y and the subgroup of E(Y) consisting of homotopy classes of self-homotopy equivalences that fix homotopy groups through the dimension of Y, denoted by E_#(Y). We give an upper bound for the solvability class of E_#(Y) in terms of a cone decomposition of Y. We dualize the latter result to obtain an upper bound for the solvability class of the subgroup of E(Y) consisting of homotopy classes of self-homotopy equivalences that fix cohomology groups with various coefficients. We also show that with integer coefficients, the latter group is nilpotent.

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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