Results 11 to 20 of about 39,336 (226)

Sheaves on the alcoves and modular representations II

open access: yes, 2020
We relate the category of sheaves on alcoves that was constructed in "Sheaves on the alcoves and modular representations I" to the representation theory of reductive algebraic groups.
Fiebig, Peter, Lanini, Martina
core   +2 more sources

String Partition Functions, Hilbert Schemes, and Affine Lie Algebra Representations on Homology Groups [PDF]

open access: yes, 2012
This review paper contains a concise introduction to highest weight representations of infinite dimensional Lie algebras, vertex operator algebras and Hilbert schemes of points, together with their physical applications to elliptic genera of ...
Bonora, Loriano   +2 more
core   +1 more source

The characters and structure of a class of modular representation algebras of cyclic p-groups [PDF]

open access: yesJournal of the Australian Mathematical Society, 1978
AbstractLet p,m be the modular representation algebra of the cyclic group of order pm over the prime field Zp. The characters of p, m are derived. For p = 2, this provides an alternative proof of a result due to Carlson (1975), tha 2,m is a local ring. It is shown that for p>2, p, m is a direct sum of 2m local rings.
openaire   +2 more sources

The Verlinde formula in logarithmic CFT [PDF]

open access: yes, 2015
In rational conformal field theory, the Verlinde formula computes the fusion coefficients from the modular S-transformations of the characters of the chiral algebra's representations.
Ridout, David, Wood, Simon
core   +5 more sources

Springer basic sets and modular Springer correspondence for classical types [PDF]

open access: yes, 2014
We define the notion of basic set data for finite groups (building on the notion of basic set, but including an order on the irreducible characters as part of the structure), and we prove that the Springer correspondence provides basic set data for Weyl ...
Juteau, Daniel   +2 more
core   +1 more source

Characters of admissible representations of the affine superalgebra sl(2|1) [PDF]

open access: yes, 1997
We calculate characters and supercharacters for irreducible, admissible representations of the affine superalgebra sl(2|1) in both the Ramond and Neveu-Schwarz sectors and discuss their modular properties in the special case of level k=-1/2. We also show
Bowcock, P, Hayes, M, Taormina, A
core   +2 more sources

Extended SL(2,R)/U(1) characters, or modular properties of a simple non-rational conformal field theory [PDF]

open access: yes, 2004
We define extended SL(2,R)/U(1) characters which include a sum over winding sectors. By embedding these characters into similarly extended characters of N=2 algebras, we show that they have nice modular transformation properties. We calculate the modular
A Pakman   +20 more
core   +2 more sources

Superconformal Algebras and Mock Theta Functions

open access: yes, 2009
It is known that characters of BPS representations of extended superconformal algebras do not have good modular properties due to extra singular vectors coming from the BPS condition.
Andrews G E   +12 more
core   +1 more source

Vector-valued higher depth quantum modular forms and higher Mordell integrals

open access: yes, 2019
In this paper, we prove vector-valued higher depth quantum modular properties arising from characters of certain vertex algebras. We then find two-dimensional Mordell integral representations for their errors of modularity.Comment: 21 pages, to appear in
Bringmann, Kathrin   +2 more
core   +1 more source

Comments on Non-holomorphic Modular Forms and Non-compact Superconformal Field Theories

open access: yes, 2014
We extend our previous work arXiv:1012.5721 [hep-th] on the non-compact N=2 SCFT_2 defined as the supersymmetric SL(2,R)/U(1)-gauged WZW model. Starting from path-integral calculations of torus partition functions of both the axial-type (`cigar') and the
A Giveon   +37 more
core   +1 more source

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