Twisting lemma for $\Lambda$-adic modules

Sohan Ghosh, Somnath Jha, Sudhanshu Shekhar

A classical twisting lemma says that given a finitely generated torsion module $M$ over the Iwasawa algebra ${\mathbb{Z}}_p[[\Gamma ]]$ with $\Gamma \cong {\mathbb{Z}}_p,\exists$ a continuous c…