The 4(th) structure
arXiv:math/0612423 · doi:10.1007/s10582-006-0440-8
Abstract
In this paper we describe all Lie bialgebra structures on the polynomial Lie algebra , where is a simple, finite dimensional, complex Lie algebra. The results are based on an unpublished paper Montaner and Zelmanov. Further, we introduce quasi-rational solutions of the CYBE and describe all quasi-rational -matrices for .