Vertex Operators and Soliton Solutions of Affine Toda Model with U(2) Symmetry
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The symmetry structure of non-abelian affine Toda model based on the coset $SL(3)/SL(2)\otimes U(1)$ is studied. It is shown that the model possess non-abelian Noether symmetry closing into a q-deformed $SL(2)\otimes U(1)$ algebra. Specific two vertex soliton solutions are constructed.
17 pages, latex, misprints corrected, version to appear in J.Phys A
17 pages, latex, misprints corrected, version to appear in J.Phys A