On S-ramified T-split Iwasawa modules

Abstract

We correct the faulty formulas given in a previous article and we compute the defect group for the Iwasawa $\lambda$ invariants attached to the S-ramified T-decomposed a belian pro-$\ell$-extensions on the Z$\ell$-cyclotomic extensionof a number field. As a consequence, we extend the results of Itoh, Mizusawa and Ozaki on tamely ramified Iwasawa modules for the cyclotomic Z$\ell$-extension of abelian fields.

in French language, Annales des sciences math{é}matiques du Qu{é}bec, A para{î}tre

References in corpus (1)

• Ramification in Iwasawa modules