2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/123485This paper has been withdrawn as it is superseded by the new version math.NT/0702135 in which two major problems (non-compatibility of the regularisation with the stuffle product and incorrect higher-dimensional setting) are fixed.This paper has been withdrawnNumber TheoryFunctional Analysis11M99, 46N99text