``Universal'' Lie algebra extensions and their Casimir invariants via commutative structures
The author approaches the recently introduced ``universal'' Lie algebra extensions from the viewpoint of commutative associative algebras, by exhibiting a one-to-one correspondence. The author investigates also the Casimir invariants for the universal extensions and the ``coextension'' structures, which arise in the calculation of the Casimir functions. This research is inspired by problems of mathematical physics.
scientific article; zbMATH DE number 1822557
scientific article