English

On compatible linear and quadratic Poisson brackets on $gl(N)$

Mathematical Physics 2025-09-30 v1 Differential Geometry math.MP

Abstract

In the present paper, using two constant tensors cc and bb on sl(N)sl(N)sl(N)\otimes sl(N) satisfying certain linear-quadratic equation and a technique of Poisson bivectors and Schouten brackets, we explicitly construct quadratic Poisson bracket on the space (sl(N)+C) (sl(N)+\mathbb{C})^* which is compatible with the standard Lie--Poisson bracket on gl(N)(sl(N)C)gl(N)^* \simeq (sl(N)\oplus \mathbb{C})^*. The case of N=3N=3 is considered in details. The relation of the proposed brackets with the generalized classical Sklyanin algebras is explained.

Cite

@article{arxiv.2509.24054,
  title  = {On compatible linear and quadratic Poisson brackets on $gl(N)$},
  author = {Andriy Panasyuk and Taras Skrypnyk},
  journal= {arXiv preprint arXiv:2509.24054},
  year   = {2025}
}

Comments

20 pages

R2 v1 2026-07-01T06:03:00.233Z