On Commutative Nonarchimedean Banach Fields
Documenta mathematica, Tome 23 (2018), pp. 171-188
We study the problem of whether a commutative nonarchimedean Banach ring which is algebraically a field can be topologized by a multiplicative norm. This can fail in general, but it holds for uniform Banach rings under some mild extra conditions. Notably, any perfectoid ring whose underlying ring is a field is a perfectoid field.
Classification :
12J25
Mots-clés : nonarchimedean Banach rings, perfectoid fields
Mots-clés : nonarchimedean Banach rings, perfectoid fields
@article{10_4171_dm_616,
author = {Kiran S. Kedlaya},
title = {On {Commutative} {Nonarchimedean} {Banach} {Fields}},
journal = {Documenta mathematica},
pages = {171--188},
year = {2018},
volume = {23},
doi = {10.4171/dm/616},
url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/616/}
}
Kiran S. Kedlaya. On Commutative Nonarchimedean Banach Fields. Documenta mathematica, Tome 23 (2018), pp. 171-188. doi: 10.4171/dm/616
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