期刊
JOURNAL OF GEOMETRY AND PHYSICS
卷 195, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.geomphys.2023.105030
关键词
Universal enveloping algebras; Argument shift method; Quantum Mischenko-Fomenko algebras
This article proves an important proposition that extends the argument shifting procedure. By studying the iterated quasi-derivations of central elements, it provides a better understanding of the structure of argument shift algebras.
We prove the statement that allows one extend the argument shifting procedure from symmetric algebra Sgld of the Lie algebra gld to the universal enveloping algebra Ugld. Namely, it turns out that the iterated quasi-derivations of the central elements in Ugld commute with each other. Here quasi-derivations are certain linear operators on Ugld, projecting to the partial derivatives on symmetric algebra S(gld). This allows one better understand the structure of argument shift algebras (or Mishchenko-Fomenko algebras) in the universal enveloping algebra of gld.(c) 2023 Elsevier B.V. All rights reserved.
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