000 02485nmm a2200205Ia 4500
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020 _a9780821875940 (online)
245 0 _aOrdered fields and real algebraic geometry
260 _aProvidence, R.I. :
_bAmerican Mathematical Society,
_cc1982
300 _a1 online resource (vii, 360 p.)
490 _aContemporary mathematics
_vv. 8
_x10983627
500 _aProceedings of the Special Session on Ordered Fields and Real Algebraic Geometry, 87th Annual Meeting of the American Mathematical Society, held at San Francisco, California, January 711, 1981T.p. verso.
504 _aIncludes bibliographies.
505 _tNormal decompositions of semialgebraic sets ; Some open problems ; La topologie du spectre reel ; Semialgebraic topology over a real closed field ; A finiteness theorem for open semialgebraic sets, with applications to Hilbert's 17th problem ; An (almost trivial) localglobal principle for the representation of
_1
_ as a sum of squares in an arbitrary commutative ring ; The Nash ring of a real surface ; Extension of an order to a simple transcendental extension ; Theorie des modeles et fonctions definies positives sur les varietes algebriques reelles ; Chains of higher level orderings ; Some properties of positive derivations on
_f
_rings ; Quadratic forms over fields with finitely many orderings ; Finitely generated groups of divisibility ; On quadratic forms and abelian varieties over function fields ; Order extensions and real algebraic geometry ; Real points and real places ; The strong topology on real algebraic varieties ; The square class invariant for Pythagorean fields ; Coherent algebraic sheaves in real algebraic geometry ; Digging holes in algebraic closures a la Artin. II C Andradas ; G Brumfiel ; Michel Coste and MarieFrancoise Roy ; Hans Delfs and Manfred Knebusch ; Charles N Delzell ; Ludwig Brocker Andreas Dress and Rudolf Scharlau ; Gustave A Efroymson ; Robert Gilmer ; Danielle Gondard ; Jonathan Harman ; Melvin Henriksen and F A Smith ; Jonathan Lee Merzel ; Bruce Glastad and Joe L Mott ; Albrecht Pfister ; D W Dubois and T Recio ; HeinzWerner Schulting ; Niels Schwartz ; Daniel B Shapiro and T Y Lam ; Alberto Tognoli ; Antonio J Engler and T M Viswanathan
650 _aGeometry, Algebraic
650 _aOrdered fields
700 _aDubois D W
700 _aRecio T
856 _uhttp://www.ams.org/conm/008/
999 _c28420
_d28420