English

Blowdown, $k$-wedge and evenness of quasitoric orbifolds

Algebraic Topology 2023-10-24 v5 Algebraic Geometry

Abstract

In this paper, we introduce polytopal kk-wedge construction and blowdown of a simple polytope and inspect the effect on the retraction sequence of a simple polytope due to kk-wedge construction and blowdown. In relation to this construction, we introduce the kk-wedge and blowdown of a quasitoric orbifold. We compare the torsions in the integral cohomologies of kk-wedges and blowdowns of a quasitoric orbifold with the original one. These two constructions provide infinitely many integrally equivariantly formal quasitoric orbifolds from a given one.

Keywords

Cite

@article{arxiv.1912.07047,
  title  = {Blowdown, $k$-wedge and evenness of quasitoric orbifolds},
  author = {Koushik Brahma and Soumen Sarkar and Subhankar Sau},
  journal= {arXiv preprint arXiv:1912.07047},
  year   = {2023}
}

Comments

22 pages, 11 figures; The paper is subdivided into two parts. First part contains results related to torsion in the blowup of quasitoric orbifolds and it can be found in https://doi.org/10.1016/j.topol.2021.107666. This upload is the second part. The article has been reorganized and several changes have been done. All comments are welcome