Translation principle for Dirac index

03/12/2017 Rafael Mrđen 0

Authors: Salah Mehdi, Pavle Pandžić, David Vogan American Journal of Mathematics, Volume 139, Number 6, December 2017 , pp. 1465-1491; doi:10.1353/ajm.2017.0037 Abstract: Let be a finite cover of a closed connected transpose-stable subgroup of with complexified Lie algebra . Let be a maximal compact subgroup of , and assume that and have equal rank. We prove a […]

BGG complexes in singular infinitesimal character for type A

03/12/2017 Rafael Mrđen 0

Authors: Pavle Pandžić, Vladimír Souček Journal of Mathematical Physics 58, 111512 (2017); https://doi.org/10.1063/1.4986121 Abstract: We give a geometric construction of the Bernstein-Gel’fand-Gel’fand (BGG) resolutions in singular infinitesimal character in the case of 1-graded complex Lie algebras of type A.

Dirac operator and its cohomology for the quantum group U_q(\mathfrak{sl}_2)

03/12/2017 Rafael Mrđen 0

Authors: Pavle Pandžić, Petr Somberg Journal of Mathematical Physics 58, 041702 (2017); https://doi.org/10.1063/1.4979623 Abstract: We introduce a Dirac operator for the quantum group , as an element of the tensor product of with the Clifford algebra on two generators. We study the properties of , including an analogue of Vogan’s conjecture. We compute the […]

On classifying unitary modules by their Dirac cohomology

03/12/2017 Rafael Mrđen 0

Authors:  Jing-Song Huang, Pavle Pandžić, David Vogan Science China Mathematics, November 2017, Volume 60, Issue 11, pp 1937–1962. https://doi.org/10.1007/s11425-017-9097-8 Abstract: Let  be a connected real reductive group with maximal compact subgroup  of the same rank as . Dirac cohomology of an module can be identified with a geometric object—the -dominant part of a face of the convex hull […]

1 2