Intrinsic Properties of Spatial Graphs - Denison University
Intrinsic Properties of Spatial Graphs - Denison University
Intrinsic Properties of Spatial Graphs - Denison University
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Introduction Linking and Knotting Other <strong>Intrinsic</strong> <strong>Properties</strong> Conclusion<strong>Intrinsic</strong>ally composite?Given a knot K , let p(K ) be the minimal number <strong>of</strong> factors in adecomposition <strong>of</strong> the knot into a connected sum <strong>of</strong> prime knots.Are their graphs for which every embedding has a knot withlarge p(K )? No!Theorem (Flapan, Howards, 2009)Every graph has an embedding in which every knotted cycle isa hyperbolic knot.Since all hyperbolic knots are prime, this means every graphhas an embedding in which all knots are prime knots, withp(K ) = 1.Blake Mellor<strong>Intrinsic</strong> <strong>Properties</strong> <strong>of</strong> <strong>Spatial</strong> <strong>Graphs</strong>