منابع مشابه
(0,2)-graphs and root systems
We construct (0,2)-graphs from root systems with simply laced diagram and study their properties.
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We describe three weight systems arising from the intersection graphs of chord diagrams (also known as circle graphs). These derive from the determinant and rank of the adjacency matrix of the graph, viewed over Z 2 , and from the rank of a " marked " adjacency matrix. We show that these weight systems are exactly those given by the Conway, HOMFLYPT and Kauffman polynomials, respectively.
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Thin films of binary Bi 0 -TeO and Bi 0 -V 0 systems were prepared by the thermal co-evaporation technique in a vacuum at room temperature. The optical absorption edge of these systems are studied in the wavelength of 200-800 nm using a PERKIN-ELMER uv/Vis spectrophotometer. It is found that the value of n=3/2 in the Davis-Mott equation is best fitted for the fundamental absorption edge f...
متن کاملClassification of small (0, 2)-graphs
We find the graphs of valency at most 7 with the property that any two nonadjacent vertices have either 0 or 2 common neighbours. In particular, we find all semibiplanes of block size at most 7.
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ژورنال
عنوان ژورنال: Journal of Discrete Mathematics
سال: 2013
ISSN: 2090-9837,2090-9845
DOI: 10.1155/2013/140537