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l. Phil. Trans. Royal Soc., 2010. Chapters 2 and 3 is published as: "Evolutionary dynamics in set structured populations", C.E. Tarnita, T. Antal, H. Ohtsuki, M.A. Nowak. P. Natl. Acad. Sci., 2009. Chapter 4 is published as: "Strategy selection in structured populations", C.E. Tarnita, H. Ohtsuki, T. Ant