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FIELDS WITH SEVERAL COMMUTING DERIVATIONS

Published online by Cambridge University Press:  17 April 2014

DAVID PIERCE*
Affiliation:
MATHEMATICS DEPARTMENT, MIMAR SINAN FINE ARTS UNIVERSITY, ISTANBUL, TURKEY E-mail: dpierce@msgsu.edu.tr, URL: http://mat.msgsu.edu.tr/∼dpierce
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Abstract

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For every natural number m, the existentially closed models ofthe theory of fields with m commuting derivations can be givena first-order geometric characterization in several ways. In particular, thetheory of these differential fields has a model-companion. The axioms are thatcertain differential varieties determined by certain ordinary varieties arenonempty. There is no restriction on the characteristic of the underlyingfield.

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Articles
Copyright
Copyright © Association for Symbolic Logic 2014