PUBLICATIONS DE L'INSTITUT MATHÉMATIQUE (BEOGRAD) (N.S.) Vol. 63 (77), pp. 147151 (1998) 

A new rational freefermion solution of the YangBaxter equationVladimir Dragovi\'cMatemati\v cki institut, Beograd, YugoslaviaAbstract: We give explicit formulae of a new family of rational $(4\times 4)$ $R$matrices, satisfying the freefermion condition. These solutions are of rank 2 and with rational irreducible spectral curves. That was the last geometrically possible situation in which solutions had not been known. Classification (MSC2000): 82B20 Full text of the article:
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