منابع مشابه
Transitive Edge Coloring of Graphs and Dimension of Lattices
We explore properties of edge colorings of graphs defined by set intersections. An edge coloring of a graphG with vertex set V ={1,2, . . . ,n} is called transitive if one can associate sets F1,F2, . . . ,Fn to vertices of G so that for any two edges ij,kl∈E(G), the color of ij and kl is the same if and only if Fi∩Fj =Fk∩Fl. The term transitive refers to a natural partial order on the color set...
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We consider directed strongly regular graphs de2ned in 1988 by Duval. All such graphs with n vertices, n6 20, having a vertex-transitive automorphism group, are determined with the aid of a computer. As a consequence, we prove the existence of directed strongly regular graphs for three feasible parameter sets listed by Duval. For one parameter set a computer-free proof of the nonexistence is pr...
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The free energy density of the SU(3) gauge theory at temperatures T/Tc = 4/3, 3/2 and 2 is calculated on lattices with temporal extent as small as Nτ = 2, 3 and spatial extent Nσ = 4Nτ using parametrized fixed point actions. Although cut–off effects are seen, they are hugely suppressed with respect to Wilson and Symanzik–improved actions and at Nτ = 3 there is already a good agreement with the ...
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ژورنال
عنوان ژورنال: Proceedings of the American Mathematical Society
سال: 1983
ISSN: 0002-9939
DOI: 10.2307/2044366