Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8903993 | Topology and its Applications | 2018 | 18 Pages |
Abstract
Let X be a finitistic space with mod 2 cohomology algebra isomorphic to that of FPmÃS3, where F=R,C or H. Let (X,E,Ï,B) be a fibre bundle and (Rk,Eâ²,Ïâ²,B) be a k-dimensional real vector bundle with fibre preserving G=Z2 action such that G acts freely on E and Eâ²â{0}, where {0} is the zero section of the vector bundle. We determine lower bounds for the cohomological dimension of the zero set fâ1({0}) of a fibre preserving G-equivariant map f:EâEâ². As an application of this result, we determine a lower bound for the cohomological dimension of the coincidence sets of continuous maps f:XâRn. In particular, we estimate the size of the coincidence sets of continuous maps f:SiÃS3âRk relative to any free involution on SiÃS3, (i=1,2,4).
Related Topics
Physical Sciences and Engineering
Mathematics
Geometry and Topology
Authors
K. Somorjit Singh, Hemant Kumar Singh,