Some results from algebraic geometry over Henselian real valued fields
Abstract
This paper develops algebraic geometry over Henselian real valued (i.e. of rank 1) fields , being a sequel to our paper about that over Henselian discretely valued fields. Several results are given including: a certain concept of fiber shrinking (a relaxed version of curve selection) for definable sets, the canonical projection and blow-ups of the -points of smooth -varieties are definably closed maps, a descent property for blow-ups, a version of the Lojasiewicz inequality for continuous rational functions and the theorem on extending continuous hereditarily rational functions, established for the real and -adic varieties in our joint paper with J. Kollar. The descent property enables application of desingularization and transformation to a normal crossing by blowing up in much the same way as over the locally compact ground field. Our approach applies quantifier elimination due to Pas.
Keywords
Cite
@article{arxiv.1312.2935,
title = {Some results from algebraic geometry over Henselian real valued fields},
author = {Krzysztof Jan Nowak},
journal= {arXiv preprint arXiv:1312.2935},
year = {2016}
}
Comments
This paper was included in the article "Some results of algebraic geometry over Henselian rank one valued fields", published in Selecta Mathematica, DOI 10.1007/s00029-016-0245-y, arXiv:1410.3280 [math.AG]