A New Approach to Braided T-Categories and Generalized Quantum Yang–Baxter Equations

Abstract

We introduce and study a large class of coalgebras (possibly (non)coassociative) with group-algebraic structures Hopf (non)coassociative group-algebras. Hopf (non)coassociative group-algebras provide a unifying framework for classical Hopf algebras and Hopf group-algebras and Hopf coquasigroups. We introduce and discuss the notion of a quasitriangular Hopf (non)coassociative π-algebra and show some of its prominent properties, e.g., antipode S is bijective. As an application of our theory, we construct a new braided T-category and give a new solution to the generalized quantum Yang–Baxter equation.

Keywords

• braided T-category
• quantum Yang–Baxter equation
• Hopf (non)coassociative group-algebra
• quasitriangular Hopf (non)coassociative <i>π</i>-algebra