"Proceedings 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 7-11, 1981"--T.p. verso.

Includes bibliographies.

Normal decompositions of semialgebraic sets / C. Andradas -- Some open problems / G. Brumfiel -- La topologie du spectre r�eel / Michel Coste and Marie-Fran�coise Roy -- Semialgebraic topology over a real closed field / Hans Delfs and Manfred Knebusch -- A finiteness theorem for open semi-algebraic sets, with applications to Hilbert's 17th problem / Charles N. Delzell -- An (almost trivial) local-global principle for the representation of $-1$ as a sum of squares in an arbitrary commutative ring / Ludwig Br�ocker, Andreas Dress and Rudolf Scharlau -- The Nash ring of a real surface / Gustave A. Efroymson -- Extension of an order to a simple transcendental extension / Robert Gilmer -- Th�eorie des mod�eles et fonctions d�efinies positives sur les vari�et�es alg�ebriques r�eelles / Danielle Gondard -- Chains of higher level orderings / Jonathan Harman -- Some properties of positive derivations on $f$-rings / Melvin Henriksen and F. A. Smith -- Quadratic forms over fields with finitely many orderings / Jonathan Lee Merzel -- Finitely generated groups of divisibility / Bruce Glastad and Joe L. Mott -- On quadratic forms and abelian varieties over function fields / Albrecht Pfister -- Order extensions and real algebraic geometry / D. W. Dubois and T. R�ecio -- Real points and real places / Heinz-Werner Sch�ulting -- The strong topology on real algebraic varieties / Niels Schwartz -- The square class invariant for Pythagorean fields / Daniel B. Shapiro and T. Y. Lam -- Coherent algebraic sheaves in real algebraic geometry / Alberto Tognoli -- Digging holes in algebraic closures �a la Artin. II / Antonio J. Engler and T. M. Viswanathan --

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Electronic reproduction. Providence, Rhode Island : American Mathematical Society. 2012

Mode of access : World Wide Web

Description based on print version record.