Appendix: Equivariant Forms
Equivariant cohomology is a structure which is attached to a smooth effective action of a Lie group G on a smooth manifold P. The model of Henri Cartan  for it is a variation of de Rham cohomology, in which the algebra Ω*(P) of smooth complex-valued differential forms on P is replaced by the algebra.
KeywordsDifferential Form Equivariant Form Smooth Manifold Connection Form Equivariant Cohomology
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