Classical sheaf cohomology rings on Grassmannians

Let the vector bundle E be a deformation of the tangent bundle over the Grassmannian G(k,n). We compute the ring structure of sheaf cohomology valued in exterior powers of E, also known as the polymology. This is the first part of a project studying the quantum sheaf cohomology of Grassmannians with...

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Bibliographic Details
Main Authors: Guo, Jirui (Author) , Lu, Zhentao (Author) , Sharpe, Eric (Author)
Format: Article (Journal)
Language:English
Published: 15 September 2017
In: Journal of algebra
Year: 2017, Volume: 486, Pages: 246-287
ISSN:1090-266X
DOI:10.1016/j.jalgebra.2017.04.026
Online Access:Verlag, Volltext: http://dx.doi.org/10.1016/j.jalgebra.2017.04.026
Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0021869317302922
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Author Notes:Jirui Guo, Zhentao Lu, Eric Sharpe
Description
Summary:Let the vector bundle E be a deformation of the tangent bundle over the Grassmannian G(k,n). We compute the ring structure of sheaf cohomology valued in exterior powers of E, also known as the polymology. This is the first part of a project studying the quantum sheaf cohomology of Grassmannians with deformations of the tangent bundle, a generalization of ordinary quantum cohomology rings of Grassmannians. A companion physics paper [6] describes physical aspects of the theory, including a conjecture for the quantum sheaf cohomology ring, and numerous examples.
Item Description:Available online 18 May 2017
Gesehen am 20.03.208
Physical Description:Online Resource
ISSN:1090-266X
DOI:10.1016/j.jalgebra.2017.04.026