Titlebook: Fundamental Biomechanics in Bone Tissue Engineering; X. Wang,J.S. Nyman,M. Reyes Book 2010 Springer Nature Switzerland AG 2010

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An Introduction to Isometric Group Actions with Applications to Spaces with Curvature Bounded from ded below. The first part consists of a review of basic material on isometric group actions. The second part covers the classical theorem of Hsiang and Kleiner about positively curved four manifolds admitting an isometric circle action. The third section covers recent joint work of the author with G