English

On the map of Vogel's plane

Mathematical Physics 2013-09-24 v1 High Energy Physics - Theory Group Theory math.MP

Abstract

We search points in a Vogel plane with regular universal expression for character of adjoint representation. This gives seven patterns of singularities cancellation, each giving a certain Diophantine equation of third order on three variables. Solutions of these equations are classical series of simple Lie algebras (including an "odd symplectic" one), D2,1,λD_{2,1,\lambda} superalgebra, the straight line of three-dimensional algebras, and a number of isolated solutions, including exceptional simple Lie algebras. One of these Diophantine equations, namely knm=4k+4n+2m+12 contains all simple Lie algebras, except SO(2N+1). Isolated solutions contain, beside exceptional simple Lie algebras, so called E71/2E_{71/2} algebra and also two other similar (unknown) objects with positive dimensions. In addition, there are 47 isolated solutions in "unphysical semiplane" with negative dimensions. Isolated solutions mainly lie on a few straight lines in Vogel plane. All solutions give an integers in universal dimension formulae for first three symmetric powers of adjoint representation.

Keywords

Cite

@article{arxiv.1209.5709,
  title  = {On the map of Vogel's plane},
  author = {R. L. Mkrtchyan},
  journal= {arXiv preprint arXiv:1209.5709},
  year   = {2013}
}