Changes in nu_k definition
Changed nu_k and omega_0. Also changed first pages of thesis
Minor corrections suggested by Fernando
sub conditions by assumtions on lemmas 4.2 and 4.4
Several alterations suggested by Aurelio
Deleted bound of xz. It will not be used anymore
Symbol list created
Update symbol list and changed convergence until main theorem
Finished convergence and complexity chapter, barring corrections
Updated workspace