= Infinitesimal cohomology
{wiki=Infinitesimal_cohomology}
Infinitesimal cohomology is a concept from the field of algebraic geometry and is particularly associated with the study of formal schemes and deformation theory. It provides a way to study the local behavior of schemes using a "cohomological" approach that incorporates infinitesimal neighborhoods. In more detailed terms, infinitesimal cohomology typically arises in contexts involving the study of deformations of algebraic objects.
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