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Your search keyword '"Virk R"' showing total 5 results
Start Over Author "Virk R" Publication Type Reports
5 results on '"Virk R"'

1. Homotopy limits and fixed point stacks

Author

Virk, R.

Subjects
Mathematics - Algebraic Geometry, Mathematics - Algebraic Topology, Mathematics - Representation Theory
Abstract

A discussion of homotopy limits of (1-)stacks, with an emphasis on fixed point stacks., Comment: Exposition streamlined. Minor errors corrected. Discussion of derived functors added

Published
2021

2. A remark on Ehresmann's Fibration Theorem

Author

Virk, R.

Subjects
Mathematics - Algebraic Geometry
Abstract

This note records that in the setting of complex varieties, the cohomological consequence of Ehresmann's fibration theorem holds without the smooth assumption on the base or the total space.

Published
2021

3. Fixed points and Langlands parameter spaces for real groups

Author

Virk, R.

Subjects
Mathematics - Representation Theory, Mathematics - Algebraic Geometry, Mathematics - Algebraic Topology
Abstract

This note records that the Langlands parameter spaces, associated by Adams- Barbasch-Vogan to a real group, may be described as homotopy fixed points (fixed point stacks) of the spaces associated to the corresponding complex group., Comment: Minor grammatical fixes

Published
2021

4. On Hall-Littlewood polynomials

Author

Virk, R.

Subjects
Mathematics - Combinatorics
Abstract

An observation on Hall-Littlewood polynomials.

Published
2013

5. Graded tensoring and crystals

Author

Virk, R.

Subjects
Mathematics - Representation Theory, Mathematics - Combinatorics, Mathematics - Quantum Algebra
Abstract

An action of the $\mathfrak{sl}_2$-crystal category on graded/mixed (integral) category $\mathcal{O}$ `lifting' the usual tensor product is defined., Comment: minor typos fixed

Published
2013

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