A geometric and generating function approach to plethysm

Álvaro Gutiérrez, Rosa Orellana, Franco Saliola +2

Plethysm coefficients ${\mathsf{a}}_{\hat{I}¼[\hat{I}½]}^{\hat{I}}»$ are the structure coefficients of the plethysm of Schur functions $s_{\hat{I}}¼[s_{\hat{I}}½]={\sum }_{\hat{I}}»{\mathsf{a}}_{\hat{I}¼[\hat{I}½]}^{\hat{I}}»s_{\hat{I}}»$. We study a bivar…