Affines Gruppenschema/Operation/K/Neutrales Element/Diagramm

${\begin{matrix}X&{\stackrel {{\left(\epsilon ^{*}j^{*}\right)}\times \operatorname {Id} _{X}}{\longrightarrow }}&G\times _{K}X&\\&\!\!\!\!\!\operatorname {Id} _{X}\searrow &\downarrow \nu \!\!\!\!\!&\\&&X&\!\!\!\!\!\!\!\!\\\end{matrix}}$