Reflection K-Matrices of the 19-Vertex Model and XXZ Spin-1 Chain with General Boundary Terms

Abstract

We derive and classify all solutions of the boundary Yang-Baxter equation (or the reflection equation) for the 19-vertex model associated with Uq ( ̂ sl2). Integrable XXZ spin-1 chain hamiltonian with general boundary interactions is also obtained. hep-th/9601049 1