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On integrability aspects of the supersymmetric sine-Gordon equation

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arxiv 1703.07925 v1 pith:INED3ZXR submitted 2017-03-23 math-ph math.MP

classification math-phmath.MP
keywords supersymmetricequationsine-gordonintegrabilitybosoniccharacterizationsfermionicproperties
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In this paper we study certain integrability properties of the supersymmetric sine-Gordon equation. We construct Lax pairs with their zero-curvature representations which are equivalent to the supersymmetric sine-Gordon equation. From the fermionic linear spectral problem, we derive coupled sets of super Riccati equations and the auto-B\"acklund transformation of the supersymmetric sine-Gordon equation. In addition, a detailed description of the associated Darboux transformation is presented and non-trivial super multisoliton solutions are constructed. These integrability properties allow us to provide new explicit geometric characterizations of the bosonic supersymmetric version of the Sym--Tafel formula for the immersion of surfaces in a Lie superalgebra. These characterizations are expressed only in terms of the independent bosonic and fermionic variables.

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