$+\infty$-$w\_0$-generated field extensions
Abstract
In this note, we continue to be interested in the relationship that connects the restricted distribution of finitude at the local level of intermediate fields of a purely inseparable extension to the absolute or global finitude of . In "{\it -generated field extensions,}Arch. Math. {\bf 47}, (1986), 410-412", JK Deveney constructed an example of modular extension called -generated such that for any proper subfield of , is finite over , and for every , we have . This example has proved to be extremely useful in the construction of other examples of -generated extensions. In particular, we prolong the -generated to an extension of unspecified finite size.However, when is of unbounded size, we show that any modular extension of unbounded exponent admits a proper subextension of unbounded exponent. This brings us to study the -generated in the restricted sense. In addition, with the aim of extending the -generated to a purely inseparable extension of unbounded size, we propose other generalizations.
Keywords
Cite
@article{arxiv.1702.02312,
title = {$+\infty$-$w\_0$-generated field extensions},
author = {El Hassane Fliouet and Fliouet Résumé},
journal= {arXiv preprint arXiv:1702.02312},
year = {2017}
}
Comments
36 pp, in French. arXiv admin note: substantial text overlap with arXiv:1701.05430