This book is an extensive monograph on Sasakian manifolds, focusing on the intricate relationship between K er and Sasakian geometries. The subject is introduced by discussion of several background topics, including the theory of Riemannian foliations, compact complex and K er orbifolds, and the existence and obstruction theory of K er-Einstein metrics on complex compact orbifolds. There is then a discussion of contact and almost contact structures in the Riemannian setting, in which compact quasi-regular Sasakian manifolds emerge as algebraic objects. There is an extensive discussion of the symmetries of Sasakian manifolds, leading to the study of Sasakian structures on links of isolated hypersurface singularities. This is followed by an in-depth study of compact Sasakian manifolds in dimensions three and five. The final section of the book deals with the existence of Sasaki-Einstein metrics. 3-Sasakian manifolds and the role of sasakian-Einstein geometry in String Theory are discussed separately.
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Charles Boyer is a Professor in the Mathematics and Statistics Department at the University of New Mexico. Krzysztof Galicki is a Professor in the Mathematics and Statistics Department at the University of New Mexico.Review:
"An extremely welcome addition to the literature on Riemannian geometry, that displays the richness of the interplay of Sasakian geometry with algebraic geometry. It contains comprehensive references to the literature, and good short overviews of proofs of the more sophisticated results."--Mathematical Reviews
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