A minimal representation of the orthosymplectic Lie supergroup

Abstract

We construct a minimal representation of the orthosymplectic Lie supergroup $OSp(p,q|2n)$, generalising the Schrödinger model of the minimal representation of $O(p,q)$ to the super case. The underlying Lie algebra representation is realized on functions on the minimal orbit inside the Jordan superalgebra associated with $\mathfrak{osp}(p,q|2n)$, so that our construction is in line with the orbit philosophy. Its annihilator is given by a Joseph-like ideal for $\mathfrak{osp}(p,q|2n)$, and therefore the representation is a natural generalization of a minimal representations to the context of Lie superalgebras. We also calculate its Gelfand--Kirillov dimension and construct a non-degenerate sesquilinear form for which the representation is skew-symmetric and which is the analogue of an $L^2$-inner product in the supercase.

45 pages

References in corpus (6)

• Spherical harmonics and integration in superspace
• Fourier transform and related integral transforms in superspace
• The orthosymplectic superalgebra in harmonic analysis
• On structure and TKK algebras for Jordan superalgebras
• Superorbits
• Polynomial realisations of Lie (super)algebras and Bessel operators

Cited by in corpus (1)

• A Fock Model and the Segal-Bargmann Transform for the Minimal Representation of the Orthosymplectic Lie Superalgebra $\mathfrak{osp}(m,2|2n)$