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Graph theory
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Structural balance: a generalization of Heider's theory.
A persistent problem of psychology has been how to deal conceptually with patterns of interdependent properties. This problem has been central, of course, in the theoretical treatment by GestaltExpand
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Graphical enumeration
What do you do to start reading graphical enumeration? Searching the book that you love to read first or find an interesting book that will make you want to read? Everybody has difference with theirExpand
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Distance in graphs
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  • F. Harary
  • Mathematics, Medicine
  • Proceedings of the National Academy of Sciences…
  • 1 July 1962
This paper solves the problem of the maximum connectivity of any graph with a given number of points and lines. Expand
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On the corona of two graphs
Our object in this note is to construct a new and simple operation on two graphs Gt and G2, called their corona, with the property that the group of the new graph is in general isomorphic with theExpand
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Planar Permutation Graphs
© Gauthier-Villars, 1967, tous droits réservés. L’accès aux archives de la revue « Annales de l’I. H. P., section B » (http://www.elsevier.com/locate/anihpb) implique l’accord avec les conditionsExpand
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T h e r e i s cons iderable i n t e r e s t i n two r e l a t e d types of graph theore t ic problems. m i n i m u m number of g r a p h s with a c e r t a i n p r o p e r t y whose union is a givenExpand
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