This book reviews localization for the equivariant evaluation of techniques It Feynmanpathintegrals. methods for developssystematicgeometric study the semi classical of ing for properties phase spacepath integrals dynamical the relationswith and systems, emphasizing integrable topologicalquantum field theories. with a detailed review ofthe relevant Beginning mathemat ical and the Duistermaat Heckman background equivariant cohomology it demonstrates...