Artin stack associated to a scheme X with group action by an affine smooth group scheme G, whose object over a scheme T is a G-torsor P→T with an equivariant map P→X, whose morphisms are G-torsor morphisms compatible with the equivariant maps to X
Artin stack associated to a scheme X with group action by an affine smooth group scheme G, whose object over a scheme T is a G-torsor P→T with an equivariant map P→X, whose morphisms are G-torsor morphisms compatible with the equivariant maps to X (en)
algebra kampo, asociita al skemo sur kiu agas afina glata grupskemo, kies objekto super skemo T eastas precipa G-fasko P kune kun egalvarianta bildigo P → X, kies morfio estas G-precipfaska morfio agordanta kun la egalvariantaj bildigoj al X (eo)