

FIZIKA B 3 (1994) 3, 167172 BETHEANSATZ, YANGBAXTER EQUATION AND FACTORIZATION OF SMATRIXRADHASHYAM BANERJEE Received 24 October 1994In this communication we remodel the analysis of the Betheansatz for the nonlinear Schrödinger equation in an external field. We have constructed the nparticle wave function, demonstrated the factorization of the Smatrix for n=2, 3 and 4 with the important difference that the basic 2body Smatrix is not a single matrix but two matrices, and verified the YangBaxter equation. UDC 530.145

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