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We show that every unitary positive energy representation W of the Virasoro algebra exponentiates to a holomorphic *-representation of the semigroup of annuli by bounded operators on the Hilbert space completion of W. We use this to show…

Functional Analysis · Mathematics 2025-06-11 André G. Henriques , James E. Tener

We give the classification of the positive energy (lowest weight) unitary irreducible representations of the superalgebras osp(1|2n,R).

High Energy Physics - Theory · Physics 2012-10-23 V. K. Dobrev , R. B. Zhang

In this manuscript, we give a classification of all irreducible, unitary representations of complex spin groups.

Representation Theory · Mathematics 2024-04-05 Kayue Daniel Wong , Hongfeng Zhang

We give a constructive classification of the positive energy (lowest weight) unitary irreducible representations of the D=6 superconformal algebras osp(8*/2N). Our results confirm all but one of the conjectures of Minwalla (for N=1,2) on…

High Energy Physics - Theory · Physics 2008-11-26 V. K. Dobrev

We continue the study of positive energy (lowest weight) unitary irreducible representations of the superalgebras osp(1|2n,R). We present the full list of these UIRs. We give the Proof of the case osp(1|8,R).

Representation Theory · Mathematics 2017-12-08 Vladimir Dobrev , Igor Salom

We present the list of irreducible (generalized) highest weight modules over the Virasoro algebra and N=1 super-Virasoro algebras obtained as factor-modules of (generalized) Verma modules. We present also the character formulae of all these…

High Energy Physics - Theory · Physics 2007-09-05 V. K. Dobrev

We give expressions for the singular vectors in the highest weight representations of the Virasoro algebra. We verify that the expressions --- which take the form of a product of operators applied to the highest weight vector --- do indeed…

High Energy Physics - Theory · Physics 2009-10-22 A. Kent

We continue the study of positive energy (lowest weight) unitary irreducible representations of the superalgebras $osp(1|2n,R)$. We update previous results and present the full list of these UIRs. We give also some character formulae for…

Representation Theory · Mathematics 2017-12-08 V. K. Dobrev , I. Salom

We classify and construct all irreducible positive energy representations of the loop group of a compact, connected and simple Lie group and show that they admit an intertwining action of Diff(S^{1}).

Quantum Algebra · Mathematics 2009-11-07 Valerio Toledano-Laredo

Let G be a semi-simple non-compact Lie group with unitary lowest/highest weight representations. We consider explicitly the relation between three types of representations of G: positive energy (unitary lowest weight)representations,…

High Energy Physics - Theory · Physics 2021-12-07 V. K. Dobrev

We classify irreducible representations of the special linear groups in positive characteristic with small weight multiplicities with respect to the group rank and give estimates for the maximal weight multiplicities. For the natural…

Representation Theory · Mathematics 2013-10-01 Alexander Baranov , Anna Osinovskaya , Irina Suprunenko

In this paper, we classify all irreducible weight modules with finite-dimensional weight spaces over the affine-Virasoro Lie algebra of type $A_1$.

Representation Theory · Mathematics 2016-06-29 Yun Gao , Naihong Hu , Dong Liu

We construct projective unitary representations of the smooth Deligne cohomology group of a compact oriented Riemannian manifold of dimension 4k+1, generalizing positive energy representations of the loop group of the circle. We also…

Representation Theory · Mathematics 2007-05-23 Kiyonori Gomi

This paper contains a complete description of classes of the unitary equivalence of the admissible representations of infinite-dimensional classic matrix groups paper.

funct-an · Mathematics 2008-02-03 N. I. Nessonov

We explicitly demonstrate that the unitary representations of the $w_\infty$ algebra and its truncations are just the unitary representations of the Virasoro algebra.

High Energy Physics - Theory · Physics 2007-05-23 C. N. Pope , X. J. Wang

We construct irreducible unitary representations of a finitely generated free group which are weakly contained in the left regular representation and in which a given linear combination of the generators has an eigenvalue. When the…

Operator Algebras · Mathematics 2007-05-23 William L. Paschke

We compute the fusion rings of positive energy representations of the loop groups of the simple, simply connected Lie groups.

Representation Theory · Mathematics 2015-05-13 Christopher L. Douglas

We introduce the class of projective reflection groups which includes all complex reflection groups. We show that several aspects involving the combinatorics and the representation theory of all non exceptional irreducible complex…

Combinatorics · Mathematics 2009-02-05 Fabrizio Caselli

In this paper it is proved that an irreducible weight module with finite-dimensional weight spaces over the Schr\"{o}dinger-Virasoro algebras is a highest/lowest weight module or a uniformly bounded module. Furthermore, indecomposable…

Rings and Algebras · Mathematics 2009-11-13 Junbo Li , Yucai Su

We prove that for a suitable class of representations of free group tensor products are generically irreducible. In particular we prove that there exist irreducible boundary realizations with infinite dimensional fiber.

Group Theory · Mathematics 2023-08-29 Waldemar Hebisch
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