Infinite sequence of nonlocal conserved currents in a supersymmetric Grassmannian model (Q801589)

The author deals with nonlocal conserved currents for supersymmetric version generalized nonlinear sigma models (the relevant classical Lagrangian density is \(L=Tr \partial_{\mu}g^{- 1}(x)\partial_{\mu}g(x)),\) the so-called Grassmannian models. As a final result, he explicitly obtains the generating function for nonlocal charges in terms of the component fields and an infinite sequence of nonlocal conserved currents for the supersymmetric U(N)/U(N-P)\(\otimes U(P)\) chiral models.