The intersection theorem for orderings of higher level in rings.

@article{Berr1992,
author = {Berr, Ralph},
journal = {Manuscripta mathematica},
keywords = {intersection theorem; orderings of commutative rings; preordering; Positivstellensatz of higher level; formally real fields},
number = {3},
pages = {273-278},
title = {The intersection theorem for orderings of higher level in rings.},
url = {http://eudml.org/doc/155723},
volume = {75},
year = {1992},
}

TY - JOUR
AU - Berr, Ralph
TI - The intersection theorem for orderings of higher level in rings.
JO - Manuscripta mathematica
PY - 1992
VL - 75
IS - 3
SP - 273
EP - 278
KW - intersection theorem; orderings of commutative rings; preordering; Positivstellensatz of higher level; formally real fields
UR - http://eudml.org/doc/155723
ER -