The Michigan Mathematical Journal, Volume 6, 1959 consists of a diverse assortment of research articles and papers that contribute significantly to various fields in mathematics. This volume features in-depth studies on topics such as relations among methods for series evaluation by Ralph Palmer Agnew, the semi-simplicity of group algebras by S. A. Amitsur, and topological transformation groups studied by P. E. Conner. It includes contributions from renowned mathematicians such as Raoul Bott, dealing with a theorem of Lefschetz; Edgar H. Brown, Jr. and Arthur H. Copeland, Jr., discussing homology analogues of Postnikov systems; and W. E. Deskins, examining systems generated by sets of endomorphisms of groups. Further investigations cover areas like Minkowski problems for convex surfaces, singular fiberings by spheres, independent perfect sets in groups, and monotone mappings of manifolds. This volume is an essential academic resource for mathematicians and researchers involved in advanced mathematical theories and applications.