Papers on Topology: analysis situs and its five supplements

John Stillwell was the recipient of the Chauvenet Prize for Mathematical Exposition in 2005. The papers in this book chronicle Henri Poincar???©'s journey in algebraic topology between 1892 and 1904, from his discovery of the fundamental group to his formulation of the Poincar???© conjecture. For the first time in English translation, one can follow every step (and occasional stumble) along the way, with the help of translator John Stillwell's introduction and editorial comments. Now that the Poincar???© conjecture has finally been proved, by Grigory Perelman, it seems timely to collect the papers that form the background to this famous conjecture. Poincar???©'s papers are in fact the first draft of algebraic topology, introducing its main subject matter (manifolds) and basic concepts (homotopy and homology). All mathematicians interested in topology and its history will enjoy this book. This volume is one of an informal sequence of works within the History of Mathematics series. Volumes in this subset, "Sources", are classical mathematical works that served as cornerstones for modern mathematical thought.