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Lectures in real geometry /

Detalles Bibliográficos
Clasificación:Libro Electrónico
Otros Autores: Broglia, Fabrizio, 1948-
Formato: Electrónico eBook
Idioma:Inglés
Publicado: Berlin ; New York : Walter de Gruyter, 1996.
Colección:De Gruyter expositions in mathematics ; 23.
Temas:
Acceso en línea:Texto completo

MARC

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245 0 0 |a Lectures in real geometry /  |c editor Fabrizio Broglia. 
260 |a Berlin ;  |a New York :  |b Walter de Gruyter,  |c 1996. 
300 |a 1 online resource (xiv, 268 pages) 
336 |a text  |b txt  |2 rdacontent 
337 |a computer  |b c  |2 rdamedia 
338 |a online resource  |b cr  |2 rdacarrier 
347 |a data file  |2 rda 
490 1 |a De Gruyter expositions in mathematics,  |x 0938-6572 ;  |v 23 
500 |a "Elaborated versions of the lectures given ... at the Winter School in Real Geometry, held in Universidad Complutense de Madrid, January 3-7, 1994"--Foreword. 
504 |a Includes bibliographical references. 
505 0 |a Foreword -- Introduction -- Basic algorithms in real algebraic geometry and their complexity: from Sturmâ€?s theorem to the existential theory of reals -- 1. Introduction -- 2. Real closed fields -- 2.1. Definition and first examples of real closed fields -- 2.2. Cauchy index and real root counting -- 3. Real root counting -- 3.1. Sylvester sequence -- 3.2. Subresultants and remainders -- 3.3. Sylvester-Habicht sequence -- 3.4. Quadratic forms, Hankel matrices and real roots -- 3.5. Summary and discussion -- 4. Complexity of algorithms -- 5. Sign determinations 
505 8 |a 5.1. Simultaneous inequalities5.2. Thomâ€?s lemma and its consequences -- 6. Existential theory of reals -- 6.1. Solving multivariate polynomial systems -- 6.2. Some real algebraic geometry -- 6.3. Finding points on hypersurfaces -- 6.4. Finding non empty sign conditions -- References -- Nash functions and manifolds -- Â1. Introduction -- Â2. Nash functions -- Â3. Approximation Theorem -- Â4. Nash manifolds -- Â5. Sheaf theory of Nash function germs -- Â6. Nash groups -- References -- Approximation theorems in real analytic and algebraic geometry 
505 8 |a IntroductionI. The analytic case -- 1. The Whitney topology for sections of a sheaf -- 2. A Whitney approximation theorem -- 3. Approximation for sections of a sheaf -- 4. Approximation for sheaf homomorphisms -- II. The algebraic case -- 5. Preliminaries on real algebraic varieties -- 6. A- and B-coherent sheaves -- 7. The approximation theorems in the algebraic case -- III. Algebraic and analytic bundles -- 8. Duality theory -- 9. Strongly algebraic vector bundles -- 10. Approximation for sections of vector bundles -- References 
505 8 |a Real abelian varieties and real algebraic curvesIntroduction -- 1. Generalities on complex tori -- 1.1. Complex tori -- 1.2. Homology and cohomology of tori -- 1.3. Morphisms of complex tori -- 1.4. The Albanese and the Picard variety -- 1.5. Line bundles on complex tori -- 1.6. Polarizations -- 1.7. Riemannâ€?s bilinear relations and moduli spaces -- 2. Real structures -- 2.1. Definition of real structures -- 2.2. Real models -- 2.3. The action of conjugation on functions and forms -- 2.4. The action of conjugation on cohomology 
505 8 |a 2.5. A theorem of Comessatti2.6. Group cohomology -- 2.7. The action of conjugation on the Albanese variety and the Picard group -- 2.8. Period matrices in pseudonormal form and the Albanese map -- 3. Real abelian varieties -- 3.1. Real structures on complex tori -- 3.2. Equivalence classes for real structures on complex tori -- 3.3. Line bundles on complex tori with a real structure -- 3.4. Riemann bilinear relations for principally polarized real varieties -- 3.5. Moduli spaces of principally polarized real abelian varieties -- 3.6. Real theta functions 
546 |a English. 
590 |a ProQuest Ebook Central  |b Ebook Central Academic Complete 
650 0 |a Geometry, Analytic. 
650 0 |a Geometry, Algebraic. 
650 6 |a Géométrie analytique. 
650 6 |a Géométrie algébrique. 
650 7 |a MATHEMATICS  |x Geometry  |x Algebraic.  |2 bisacsh 
650 7 |a Geometry, Algebraic  |2 fast 
650 7 |a Geometry, Analytic  |2 fast 
700 1 |a Broglia, Fabrizio,  |d 1948-  |1 https://id.oclc.org/worldcat/entity/E39PCjF8gWQ3j94PPHd8cJ4Brm 
776 0 8 |i Print version:  |t Lectures in real geometry.  |d Berlin ; New York : Walter de Gruyter, 1996  |w (DLC) 96031731 
830 0 |a De Gruyter expositions in mathematics ;  |v 23.  |x 0938-6572 
856 4 0 |u https://ebookcentral.uam.elogim.com/lib/uam-ebooks/detail.action?docID=3040487  |z Texto completo 
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