M. Manas et Lm. Alonso, FROM RAMOND FERMIONS TO LAME EQUATIONS FOR ORTHOGONAL CURVILINEAR COORDINATES, Physics letters. Section B, 436(3-4), 1998, pp. 316-322
We show how Ramond free neutral Fermi fields lead to a tau-function th
eory of BKP type which describes iso-orthogonal deformations of system
s of orthogonal curvilinear coordinates. We also provide a vertex oper
ator representation for the classical Ribaucour transformation. (C) 19
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