Introduction

The notes were typed up by me, John Fremlin john@fremlin.de.

These notes are based on the part IIA mathematics course ``Graph theory'' given by Dr Fisher in Cambridge in Michælmas 2003. These notes are not connected to Dr Fisher in any way. If there are any mistakes in them, it is more than very likely that they are my fault.

I added a few clumsy elucidations, to the arguments that I initially did not understand, which will no doubt ensure that there are at least some errors, because I could not find any in Dr Fisher's lectures.

Furthermore these notes are very definitely no substitute for actually going to lectures, because they do not include all of the material and especially examples covered, or any of the asides.

Finally, I would like to thank Dr Fisher for his supervisions, where he taught me a lot about mathematics.