étale morphism (submersion, immersion)
generally in differential cohesion
in topology
higher geometry / derived geometry
geometric little (∞,1)-toposes
geometric big (∞,1)-toposes
function algebras on ∞-stacks?
derived smooth geometry
An -algebra is étale if the definition homomorphism is, dually, an étale morphism of schemes.
A more elementary definition for algebras over a discrete field exists in constructive algebra.
étale morphism pro-étale morphism weakly étale morphism formally étale morphism
Henri Lombardi & Claude Quitté, Constructive Algebra, Constructive Methods, 2014, PDF
Last revised on May 21, 2014 at 03:41:09. See the history of this page for a list of all contributions to it.