Extremal Functions for Contractions of Graphs
In this dissertation, a problem related to Hadwiger's conjecture has been studied. We first proved a conjecture of Jakobsen from 1983 which states that every simple graphs on $n$ vertices and at least (11n-35)/2 edges either has a minor isomorphic to K_8 with one edge deleted or is isomorphic t...
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| Format: | Others |
| Language: | en_US |
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Georgia Institute of Technology
2005
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| Online Access: | http://hdl.handle.net/1853/6425 |