Effective actions, relative cohomology and Chern Simons forms
classification
✦ hep-th
math-phmath.MPmath.QAq-alg
keywords
actionseffectiveformssimpleapplicationsbrokenchernchern-simons
read the original abstract
The explicit expression of all the WZW effective actions for a simple group G broken down to a subgroup H is established in a simple and direct way, and the formal similarity of these actions to the Chern-Simons forms is explained. Applications are also discussed.
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