In algebra, Exalcomm is a functor classifying the extensions of a commutative algebra by a module. More precisely, the elements of Exalcommk(R,M) are isomorphism...

This term can be extended to a six-term exact sequence using the functor Exalcomm of extensions of commutative algebras and a nine-term exact sequence using...

this[citation needed]. Kodaira–Spencer map Dual number Schlessinger's theorem Exalcomm Cotangent complex Gromov–Witten invariant Moduli of algebraic curves Degeneration...

interpretation of this Abelian 2-group from deformation theory using the Exalcomm category. Note that in addition to using a 2-term chain complex, would...

cotangent complex for local-complete intersections and in the study of exalcomm. Grothendieck construction Stack (mathematics) Artin's criterion Fibration...

_{C}^{1}(p_{1}+\cdots +p_{n}))} André–Quillen cohomology Deformation theory Exalcomm Kodaira-Spencer class Atiyah class "Section 91.21 (08UX): Deformations...