A parametrized Borsuk-Ulam theorem for a product of spheres with free ZP-action and free S1-action

被引:13
|
作者
De Mattos, Denise [1 ]
Dos Santos, Edivaldo L. [2 ]
机构
[1] Univ Sao Paulo, Inst Ciencia Matemat & Computacao, Dept Matemat, BR-13560970 Sao Carlos, SP, Brazil
[2] Univ Fed Sao Carlos, Dept Matemat, BR-13565905 Sao Carlos, SP, Brazil
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D O I
10.2140/agt.2007.7.1791
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In this paper, we prove parametrized Borsuk-Ulam theorems for bundles whose fibre has the same cohomology (mod p) as a product of spheres with any free Z(p)-action and for bundles whose fibre has rational cohomology ring isomorphic to the rational cohomology ring of a product of spheres with any free S-1-action. These theorems extend the result proved by Koikara and Mukejee in [7]. Further, in the particular case where G = Z(p), we estimate the "size" of the Z(p)-coincidence set of a fibre-preserving map.
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页码:1791 / 1804
页数:14
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