My PhD thesis, entitled Tournaments and Optimality: New Results in Parameterized Complexity, has been prepared under supervision of prof. Fedor V. Fomin at the Institute of Informatics of the University of Bergen, Norway. I defended it on November 22nd, 2013. Below you can find the thesis itself. I am keeping track of minor bugs that I've encountered after handing it in, so please look at the newest revision.

Version 1.0The original thesis in the original format.
Revision 1.1Switched to A4 format, included comments of the opponents, fixed some other minor issues.
Revision 1.11Changed slightly the tone here and there, fixed some overlines.