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Statements
12 September 1993
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Special aspects of infinite or finite groups simplicial complexes
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homeomorphism
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fundamental group
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Cayley diagrams
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Tietze transformations
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Jordan's curve theorem
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Riemann surfaces
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branched coverings
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Nielsen-Schreier theorem
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Seifert-VanKampen theorem
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Wirtinger's presentation of knot groups
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wild knots
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torus knots
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lens spaces
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Reidemeister-Schreier process
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Kurosh' subgroup theorem
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first homology group
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solvability of the word problem for the fundamental group of a surface
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isotopy theory of curves on surfaces
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solution of the word problem for braid groups
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unshellable triangulation of the 3-ball
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Poincaré conjecture
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Heegard splittings
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Dehn surgery
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Turing machines
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HNN extensions
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unsolvability of the word problem from groups
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