2 papers
math-ph2021
On a Hidden Supersymmetry of Cosmological Billiards
Dimitry Leites, Oleksandr Lozhechnyk
In the Belinski-Khalatnikov-Lifshitz cosmological models with an oscillatory approximation to singularity, the tracks of cosmological billiards (whatever they are) are realized in…
math.RT2019
Inverses of Cartan matrices of Lie algebras and Lie superalgebras
Dimitry Leites, Oleksandr Lozhechnyk
The inverses of indecomposable Cartan matrices are computed for finite-dimensional Lie algebras and Lie superalgebras over fields of any characteristic, and for hyperbolic (almost…