Extended πͺ-operators on Lie-Yamaguti Algebras
Abstract
We study balanced extended πͺ-operators on Lie--Yamaguti algebras. The construction links operator equations, algebra splittings and Yang--Baxter equations. We build a double from a representation and a balanced equivariant map. The graphs of extended πͺ-operators are exactly its subalgebras complementary to the first summand. We define extended post-Lie--Yamaguti algebras and prove their two-way relation with extended πͺ-operators. The tensor form gives a balanced extended Lie--Yamaguti Yang--Baxter equation. We construct a curved Lβ[1]-algebra whose Maurer--Cartan elements are extended πͺ-operators. The normal representation of a graph gives a cohomology theory for infinitesimal deformations, rigidity and obstructions. We include both cyclic conditions in the lowest paired degree. We also map operator infinitesimals to the deformation cohomology of the induced algebra. Examples give obstructed infinitesimals, rigid scalar operators and nontrivial formal deformations.
Related
- 1/2 derivations and biderivations of 3-dimensional nilpotent Lie-Yamaguti algebras
- Rigid dualizing complex for quantum enveloping algebras and algebras of generalized differential operators
- Deformations and the controlling Lβ-structure of extended Rota-Baxter Lie algebras
- Einstein manifolds and extended PoincarΓ© algebras
- Deformation theory and the controlling Lβ-structure of extended Rota-Baxter algebras
BibTeX
@misc{teng2026extended,
title = {{Extended $\mathcalO$-operators on Lie-Yamaguti Algebras}},
author = {Wen Teng},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.40686},
eprint = {2610.40686},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.40686},
note = {CC BY-NC-ND 4.0},
}
RIS
TY - UNPB
TI - Extended πͺ-operators on Lie-Yamaguti Algebras
AU - Wen Teng
PY - 2026
DA - 2026/10/26
PB - arXiv
DO - 10.48550/arxiv.2610.40686
UR - https://arxiv.org/abs/2610.40686
AB - We study balanced extended πͺ-operators on Lie--Yamaguti algebras. The construction links operator equations, algebra splittings and Yang--Baxter equations. We build a double from a representation and a balanced equivariant map. The graphs of extended πͺ-operators are exactly its subalgebras complementary to the first summand. We define extended post-Lie--Yamaguti algebras and prove their two-way relation with extended πͺ-operators. The tensor form gives a balanced extended Lie--Yamaguti Yang--Baxter equation. We construct a curved L_β[1]-algebra whose Maurer--Cartan elements are extended πͺ-operators. The normal representation of a graph gives a cohomology theory for infinitesimal deformations, rigidity and obstructions. We include both cyclic conditions in the lowest paired degree. We also map operator infinitesimals to the deformation cohomology of the induced algebra. Examples give obstructed infinitesimals, rigid scalar operators and nontrivial formal deformations.
ER -