LIBROS DEL AUTOR: klaus johannson

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  • Topology and Combinatorics of 3-Manifolds
    Klaus Johannson
    This book is a study of combinatorial structures of 3-mani- folds, especially Haken 3-manifolds. Specifically, it is concerned with Heegard graphs in Haken 3-manifolds, i.e., with graphs whose complements have a free fundamental group. These graphs always exist. They fix not only a combinatorial stucture but also a presentation for the fundamental gro...
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