Classification of simple Lie superalgebras in characteristic 2

S Bouarroudj, A Lebedev, D Leites… - International …, 2023 - academic.oup.com
All results concern characteristic 2. We describe two procedures; each of which to every
simple Lie algebra assigns a simple Lie superalgebra. We prove that every simple finite …

Manin triples and non-degenerate anti-symmetric bilinear forms on Lie superalgebras in characteristic 2

S Benayadi, S Bouarroudj - Journal of Algebra, 2023 - Elsevier
In this paper, we introduce and develop the notion of a Manin triple for a Lie superalgebra g
defined over a field of characteristic p= 2. We find cohomological necessary conditions for …

Hom-Lie superalgebras in characteristic 2

S Bouarroudj, A Makhlouf - Mathematics, 2023 - mdpi.com
The main goal of this paper was to develop the structure theory of Hom-Lie superalgebras in
characteristic 2. We discuss their representations, semidirect product, and α k-derivations …

On odd parameters in geometry

D Leites - arXiv preprint arXiv:2210.17096, 2022 - arxiv.org
1) In 1976, looking at simple finite-dimensional complex Lie superalgebras, J.~ Bernstein
and I, and independently M.~ Duflo, observed that certain divergence-free vectorial Lie …

New simple Lie superalgebras as queerified associative algebras

D Leites - arXiv preprint arXiv:2203.06917, 2022 - arxiv.org
Over $\mathbb {C} $, Montgomery superized Herstein's construction of simple Lie algebras
from finite-dimensional associative algebras, found obstructions to the procedure and …

Double extensions of quasi-Frobenius Lie superalgebras with degenerate center

S Bouarroudj, Q Ehret - Communications in Algebra, 2024 - Taylor & Francis
We develop the process of symplectic double extensions for Lie superalgebras with
degenerate center. The construction is a superization of a recent work by Fischer, and …

Nondegenerate invariant symmetric bilinear forms on simple Lie superalgebras in characteristic 2

A Krutov, A Lebedev, D Leites… - Linear Algebra and its …, 2022 - Elsevier
As is well-known, the dimension of the space spanned by the non-degenerate invariant
symmetric bilinear forms (NISes) on any simple finite-dimensional Lie algebra or Lie …

Double extensions of restricted Lie (super) algebras

S Benayadi, S Bouarroudj, M Hajli - Arnold Mathematical Journal, 2020 - Springer
Abstract A double extension (D D-extension) of a Lie (super) algebra aa with a non-
degenerate invariant symmetric bilinear form BB, briefly, a NIS-(super) algebra, is an …

New constructions of exceptional simple Lie superalgebras with integer Cartan matrix in characteristics 3 and 5 via tensor categories

AS Kannan - Transformation groups, 2024 - Springer
Using tensor categories, we present new constructions of several of the exceptional simple
Lie superalgebras with integer Cartan matrix in characteristic p= 3 and p= 5 from the …

Derivations and Central Extensions of Symmetric Modular Lie Algebras and Superalgebras (with an Appendix by Andrey Krutov)

S Bouarroudj, P Grozman, A Lebedev… - … Integrability and Geometry …, 2023 - emis.de
Over algebraically closed fields of positive characteristic, for simple Lie (super) algebras,
and certain Lie (super) algebras close to simple ones, with symmetric root systems (such …