Coproducts for affine super-Yangian and Weyl groupoid action

Vasiliy Volkov, Vladimir Stukopin

For affine special linear superalgebra $\widehat{sl}(m|n,\hat{I})$ defined by an arbitrary system of simple roots $\hat{I}$ we define the affine super Yangian $Y_{\hbar}(\widehat{sl}(m|n, Î…