The period-index problem of the canonical gerbe of symplectic and orthogonal bundles

Indranil Biswas,Emre Coskun,Ajneet Dhillon

doi:10.1016/j.jalgebra.2015.10.001

The period-index problem of the canonical gerbe of symplectic and orthogonal bundles

Indranil Biswas, Emre Coskun + Show 1 more

Open Access

https://doi.org/10.1016/j.jalgebra.2015.10.001

Copy DOI

Journal: Journal of Algebra	Publication Date: Nov 16, 2015
Citations: 1	License type: publisher-specific-oa

Affiliation: Western University, Tata Institute of Fundamental Research

#Orthogonal Bundles #Coarse Moduli Space + Show 7 more

Abstract
Full-Text PDF
Similar Papers

Abstract

We consider regularly stable parabolic symplectic and orthogonal bundles over an irreducible smooth projective curve over an algebraically closed field of characteristic zero. The morphism from the moduli stack of such bundles to its coarse moduli space is a μ2-gerbe. We study the period and index of this gerbe, and solve the corresponding period-index problem.

Full Text