Carl Bracken, Gary McGuire
Published 2002-12-10Version 1
We characterize the SDP designs that give rise to four-weight spin models with two values. We prove that the only such designs are the symplectic SDP designs. The proof involves analysis of cardinalities of intersections of four blocks.
Characterization and enumeration of toroidal K_{3,3}-subdivision-free graphs
The Characterization of planar, 4-connected, K_{2,5}-minor-free graphs
A characterization of homology manifolds with $g_2\leq 2$
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