English

On a hidden supersymmetry of cosmological billiards

Mathematical Physics 2024-09-16 v2 General Relativity and Quantum Cosmology math.MP Representation Theory

Abstract

The hyperbolic Lie algebras with symmetrizable Cartan matrix are classified, there are 142 of them some of which can be ``superized'' to an almost affine Lie superalgebra. We list all 97 pairs (a hyperbolic Lie algebra HH, its superized almost affine Lie superalgebra S(H)S(H)). Several (18 of the total 66) superizable hyperbolic Lie algebras have multiple superizations. The tracks of cosmological billiards corresponding to both terms of these pairs (HS(H)H\leftrightarrow S(H)) are the same since the Weyl chambers of HH and of S(H)S(H) differ only by a~scale. We also classified ``superizations'' of hyperbolic Lie algebras with non-symmetrizable Cartan matrix. No interpretations of these Lie (super)algebras are known to us.

Keywords

Cite

@article{arxiv.2102.04192,
  title  = {On a hidden supersymmetry of cosmological billiards},
  author = {Dimitry Leites and Oleksandr Lozhechnyk},
  journal= {arXiv preprint arXiv:2102.04192},
  year   = {2024}
}

Comments

12 pages, text edited, tables more readable, but the essence is the same as in version 1