English

PRV for the Fusion product, the case $\lambda\gg\mu$

Representation Theory 2021-03-26 v2

Abstract

Given a complex simple Lie algebra g\mathfrak{g} and a positive integer \ell, under the assumption λμ\lambda\gg\mu, we show that irreducible representations of g\mathfrak{g} of the form V(λ+wμ)V(\lambda +w\mu), wW,w\in W, with level at most \ell appear in the fusion product of V(λ)V(\lambda) and V(μ)V(\mu). This verifies the existence of PRV components for the fusion product in this special case.

Keywords

Cite

@article{arxiv.2011.10986,
  title  = {PRV for the Fusion product, the case $\lambda\gg\mu$},
  author = {Arzu Boysal},
  journal= {arXiv preprint arXiv:2011.10986},
  year   = {2021}
}

Comments

v2: some minor changes in notation, added few definitions and references

R2 v1 2026-06-23T20:25:27.875Z