On modified Rota-Baxter Hom-Lie algebras |
Received:January 25, 2024 Revised:May 22, 2024 |
Key Words:
Hom-Lie algebra modified Rota-Baxter operator cohomology deformation abelian extension
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Abstract: |
Semenov-Tian-Shansky has given the solution of the modified classical Yang-Baxter equation, which was called the modified $r$-matrix. Relevant studies have been extensive in recent times. In this paper, we introduce the concept and representations of modified Rota-Baxter Hom-Lie algebras. We then develop the cohomology of modified Rota-Baxter Hom-Lie algebras with coefficients in a suitable representation. As applications, we study formal deformations and abelian extensions of modified Rota-Baxter Hom-Lie algebras in terms of second cohomology groups. |
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