Abstract | ||
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Rado constructed a (simple) denumerable graph R with the positive integers as vertex set with the following edges: For given m and n with m < n, m is adjacent to n if n has a 1 in the m'th position of its binary expansion. It is well known that R is a universal graph in the set I-c of all countable graphs (since every graph in I-c is isomorphic to an induced subgraph of R). A brief overview of known universality results for some induced-hereditary subsets of I-c is provided. We then construct a k-degenerate graph which is universal for the induced-hereditary property of finite k-degenerate graphs. In order to attempt the corresponding problem for the property of countable graphs with colouring number at most k + 1, the notion of a property with assignment is introduced and studied. Using this notion, we are able to construct a universal graph in this graph property and investigate its attributes. |
Year | DOI | Venue |
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2013 | 10.7151/dmgt.1696 | DISCUSSIONES MATHEMATICAE GRAPH THEORY |
Keywords | Field | DocType |
countable graph,universal graph,induced-hereditary,k-degenerate graph,graph with colouring number at most k+1,graph property with assignment | Discrete mathematics,Combinatorics,Line graph,Vertex-transitive graph,Distance-hereditary graph,Factor-critical graph,Symmetric graph,Universal graph,Voltage graph,Mathematics,Complement graph | Journal |
Volume | Issue | ISSN |
33 | 3 | 1234-3099 |
Citations | PageRank | References |
0 | 0.34 | 6 |
Authors | ||
3 |
Name | Order | Citations | PageRank |
---|---|---|---|
Izak Broere | 1 | 143 | 31.30 |
Johannes Heidema | 2 | 30 | 6.96 |
Peter Mihók | 3 | 232 | 44.49 |