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The structure and methods of generation of closed classes of graphs

  • M. A. Iordanskii
Veröffentlicht/Copyright: 1. August 2003
Veröffentlichen auch Sie bei De Gruyter Brill
Discrete Mathematics and Applications
Aus der Zeitschrift Band 13 Heft 4

We consider a functional approach to a system of graphs with operations: we study the structure of classes of graphs closed with respect to some operations, the total number of closed classes, the number of precomplete classes and methods of generating the classes.

We indicate the systems of operations with respect to which the sets of closed classes of graphs are continual, countable or finite. It is shown that systems of operations realise all possibilities of generation of closed classes of graphs: there exist classes with finite, countable bases, and classes which have no bases.

Published Online: 2003-08-01
Published in Print: 2003-08-01

Copyright 2003, Walter de Gruyter

Heruntergeladen am 30.11.2025 von https://www.degruyterbrill.com/document/doi/10.1515/156939203322556063/pdf?lang=de
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