Integral generalized equivariant cohomologies of weighted Grassmann orbifolds
Abstract
We introduce a new definition of weighted Grassmann orbifolds. We study their several invariant -cell structures and the orbifold singularities on these -cells. We discuss when the integral cohomology of a weighted Grassmann orbifold has no -torsion. We compute the equivariant -theory ring of weighted Grassmann orbifolds with rational coefficients. We introduce divisive weighted Grassmann orbifolds and show that they have invariant cell structures. We calculate the equivariant cohomology ring, equivariant -theory ring and equivariant cobordism ring of a divisive weighted Grassmann orbifold with integer coefficients. We discuss how to compute the weighted structure constants for the integral equivariant cohomology ring of a divisive weighted Grassmann orbifold.
Keywords
Cite
@article{arxiv.2104.10374,
title = {Integral generalized equivariant cohomologies of weighted Grassmann orbifolds},
author = {Koushik Brahma and Soumen Sarkar},
journal= {arXiv preprint arXiv:2104.10374},
year = {2022}
}
Comments
30 pages, 1 figure. The previous version is subdivided into two parts. This part contains results related to weighted Grassmann orbifolds with some modification and new results. We are adding a few more results for simplicial GKM orbifold complex (which is 2nd section of previous version) and writing a seperate paper. Comments are welcome