English

Iwasawa cohomology of analytic $(\varphi_L,\Gamma_L)$-modules

Number Theory 2024-10-28 v2

Abstract

We show that the coadmissibility of the Iwasawa cohomology of an LL-analytic Lubin-Tate (φL,ΓL)(\varphi_L,\Gamma_L)-module MM is necessary and sufficient for the existence of a comparison isomorphism between the former and the analytic cohomology of its Lubin-Tate deformation, which, roughly speaking, is given by the base change of MM to the algebra of LL-analytic distributions. We verify that coadmissibility is satisfied in the trianguline case and show that it can be ``propagated'' to a reasonably large class of modules, provided it can be proven in the \'etale case.

Keywords

Cite

@article{arxiv.2212.02275,
  title  = {Iwasawa cohomology of analytic $(\varphi_L,\Gamma_L)$-modules},
  author = {Rustam Steingart},
  journal= {arXiv preprint arXiv:2212.02275},
  year   = {2024}
}

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updated, published version