Reflection matrices for the vertex model
arXiv:0809.0421
Abstract
The graded reflection equation is investigated for the vertex model. We have found four classes of diagonal solutions with at the most one free parameter and twelve classes of non-diagonal ones with the number of free parameters depending on the number of bosonic () and fermionic () degrees of freedom.
33 pages, LaTex, corrected some misprints, appendix and references added