In
mathematics
Mathematics is a field of study that discovers and organizes methods, Mathematical theory, theories and theorems that are developed and Mathematical proof, proved for the needs of empirical sciences and mathematics itself. There are many ar ...
, more specifically in
algebra
Algebra is a branch of mathematics that deals with abstract systems, known as algebraic structures, and the manipulation of expressions within those systems. It is a generalization of arithmetic that introduces variables and algebraic ope ...
, the adjective étale refers to several closely related concepts:
*
Étale morphism
**
Formally étale morphism
*
Étale cohomology
*
Étale topology
*
Étale fundamental group
*
Étale group scheme
*
Étale algebra
Other
*
Étale (mountain) in Savoie and Haute-Savoie, France
See also
*
Étalé space
*
Etail, or online commerce
{{disambig