Coassociative grammar, periodic orbits, and quantum random walk over .
Commutator representations of covariant differential calculi
Constant solutions of Yang-Baxter equation for sl(2) and sl(3).
Construction of the Bethe state for the elliptic quantum group.
Contractions of Poisson-Lie groups, Lie bialgebras and quantum deformations
Contractions of Poisson-Lie groups are introduced by using Lie bialgebra contractions. As an application, contractions of SL(2,R) Poisson-Lie groups leading to (1+1) Poincaré and Heisenberg structures are analysed. It is shown how the method here introduced allows a systematic construction of the Poisson structures associated to non-coboundary Lie bialgebras. Finally, it is sketched how contractions are also implemented after quantization by using the Lie bialgebra approach.
Creation and annihilation operators for orthogonal polynomials of continuous and discrete variables.
Crystal bases for the quantum queer superalgebra
In this paper, we develop the crystal basis theory for the quantum queer superalgebra . We define the notion of crystal bases and prove the tensor product rule for -modules in the category . Our main theorem shows that every -module in the category has a unique crystal basis.