Thesis No 1800-EPFL
by Nils Berglund
May 1998
The subject of this thesis is described here.
For questions and comments, please send me a mail.
Change log:
8 May 1998: Version 1.2.
The official version which will be printed. The proof
of Proposition 5.2 has been changed, with some minor
repercussions on the differentiability assumptions in
Theorem 5.1.
15 April 1998: Version 1.1.
The first version available on the web. A
(substantial) number of typos has been corrected.
10 March 1998: Version 1.0.
This is the version sent to the jury. Not yet available
on the web.