Mathematics – Geometric Topology
Scientific paper
2008-09-02
Mathematics
Geometric Topology
21 pages, 5 figures, submitted to Algebraic and Geometric Topology
Scientific paper
We examine graphs that contain a non-trivial link in every embedding into real projective space, using a weaker notion of unlink than was used by Flapan, et al. We call such graphs intrinsically linked in projective space. We fully characterize such graphs with connectivity 0,1 and 2. We also show that only one Petersen-family graph is intrinsically linked in projective space and prove that K7 minus any two edges is also minor-minimal intrinsically linked. In all, 594 graphs are shown to be minor-minimal intrinsically linked in projective space.
Bustamante Jason
Federman Jared
Foisy Joel
Kozai Kenji
Matthews Kevin
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