Comparisons of Lie algebra cohomologies of $(\varphi,\Gamma)$-modules
Number Theory
2025-04-16 v2
Abstract
We generalise a result of Fourquaux and Xie thereby completely determining the relationship between and -analytic Lie algebra cohomology of analytic -modules. We use the results to conclude that for there exist examples of \'etale -modules over Robba rings whose -analytic cohomology does not arise as a base change of Galois cohomology.
Cite
@article{arxiv.2311.07799,
title = {Comparisons of Lie algebra cohomologies of $(\varphi,\Gamma)$-modules},
author = {Rustam Steingart},
journal= {arXiv preprint arXiv:2311.07799},
year = {2025}
}
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