dagger]) Partially supported by Projects CICYT
This work was supported by the CICYT
under contract TIC98-0433
The authors acknowledge CICYT
(program IFD97-0813-C03) and the "Ramon y Cajal" programs for financial support.
This work has been supported by the CICYT
under contract number TIC 98-0433 and partially supported by the "Comisionat per a Universitats i Recerca" (Grups de Recerca Consolidats 1999 SGR 00086)
We thank the Spanish and Catalonian research administrations (projects FIS 96/1050, CICYT
SAF 97-068, and CIRIT DOGC 2320) for financial support.
5267) and to the CICYT
(MAT99-1179) for financial support.
Funding through grant CICYT
MAT 97-0634-C02-01 is acknowledged.
The financial support of the CICYT
(project MAT96-2310) is gratefully acknowledged.
Financial support through CICYT
(MAT96-0477) and UPV/EHU (UPV 203.
We express our thanks to CICYT
project MAT 8010-95 and Fondecyt, project 1960423, for partial financial support.
This work was supported by grant Mat93-0749C03-01 from the CICYT
This research was supported by CICYT
(MAT 92-0826) and Diputacion Foral de Guipuzcoa.