Algebraic Geometry and Singularities by Antonio Campillo LopezAlgebraic Geometry and Singularities by Antonio Campillo Lopez

Algebraic Geometry and Singularities

byAntonio Campillo LopezEditorLuis Narvaez Macarro

Paperback | September 18, 2011 | French

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The focus of this volume lies on singularity theory in algebraic geometry. It includes papers documenting recent and original developments and methods in subjects such as resolution of singularities, D-module theory, singularities of maps and geometry of curves. The papers originate from the Third International Conference on Algebraic Geometry held in La Rábida, Spain, in December 1991. Since then, the articles have undergone a meticulous process of refereeing and improvement, and they have been organized into a comprehensive account of the state of the art in this field.
Title:Algebraic Geometry and SingularitiesFormat:PaperbackDimensions:407 pagesPublished:September 18, 2011Publisher:Springer-Verlag/Sci-Tech/TradeLanguage:French

The following ISBNs are associated with this title:

ISBN - 10:3034898703

ISBN - 13:9783034898706


Table of Contents

I Resolution of Singularities.- Désingularisation en dimension 3 et caractéristique p.- 1 Différentes notions de désingularisation.- 2 Première réduction.- 3 Deuxième réduction, construction d'un modèle projectif.- 4 Troisième réduction, birationnel devient projectif.- 5 Final: Morphisme projectif birationnel devient désingularisation.- Sur l'espace des courbes tracées sur une singularité.- 1 Introduction.- 2 Structure pro-algébrique de Tespace des courbes et la fonction de M. Art in d'une singularité.- 3 Families de courbes (selon J. Nash) et désingularisations.- 4 Courbes sur une singularité isolée d'hypersurface.- 5 Courbes lisses sur une singularité de surface.- 6 Deux exemples.- Blowing up acyclic graphs and geometrical configurations.- 1 Introduction.- 2 Basic concepts and notations.- 3 Blowing up acyclic graphs.- 4 Graphic representation of the blowing up for a geometric configuration.- 5 Geometric modification for acyclic graphs.- On a Newton polygon approach to the uniformization of singularities of characteristic p.- 1 Introduction.- 2 Newton polygon and uniformization for ?1 ? n ? 1.- 3 Jumping lemma and Uniformization for ?1 = n ? 2.- 4 The classification of 3-dimensional singularities and uniformization for ?2 ? 3 or ?2 = $${\pi _{\mathop 2\limits^ * }} \geqslant 2$$.- 5 Uniformization for ?2 = 2 and $${\pi _{\mathop 2\limits^ * }}$$ = 1.- 6 Uniformization for ?2 = 1.- Geometry of plane curves via toroidal resolution.- 1 Introduction.- 2 Toric blowing-up and a tower of toric blowing-ups.- 3 Dual Newton diagram and an admissible toric blowing-up.- 4 Resolution complexity.- 5 Characteristic power and Puiseux Pairs.- 6 The Puiseux pairs of normal slice curves.- 7 Geometry of plane curves via a toroidal resolution.- 8 Iterated generic hyperplane section curves.- to the algorithm of resolution.- 1 Introduction.- 2 Stating the problem of resolution of singularities.- 3 Auxiliary result: Idealistic pairs.- 4 Constructive resolutions.- 5 The language of groves and the problem of patching.- 6 Examples.- II Complex Singularities and Differential Systems.- Polarity with respect to a foliation.- 1 Introduction.- 2 Preliminaries on linear systems.- 3 The polarity map.- 4 Plücker's formula.- 5 The net of polars.- 6 Some calculus.- On moduli spaces of semiquasihomogeneous singularities.- 1 Introduction.- 2 Versal µ-constant deformations and kernel of Kodaira-Spencer map.- 3 Existence of a geometric quotient for fixed Hilbert function of the Tjurina algebra.- 4 The automorphism group of semi Brieskorn singularities.- 5 Problems.- Stratification Properties of Constructible Sets.- 1 Introduction.- 2 Grassmann blowing-up.- 3 Analytically constructible sets.- 4 An application: the Henry-Merle Proposition.- 5 Canonical stratification.- On the linearization problem and some questions for webs in ?2.- 1 Introduction in the form of a survey.- 2 Linearization of webs in (?2,0).- 3 Geometry of the abelian relation space and the linearization problem in the maximum rank case.- 4 Some questions on wrebs in ?2.- Globalization of Admissible Deformations.- 1 Introduction.- 2 Compactification.- 3 Globalization of deformations.- Caractérisation géométrique de l'existence du polynôme de Bernstein relatif.- 1 Polynôme de Bernstein relatif.- 2 DX×T Module holonome régulier relativement cohérent.- Le Polygone de Newton d'un DX-module.- 1 Introduction.- 2 Le cas d'une variable.- 3 La catégorie des faisceaux pervers.- 4 Le faisceau d'irrégularité et le cycle d'irrégularité.- 5 La filtration du faisceau d'irrégularité.- 6 Le poly gone de Newton d'un DX-module.- 7 Sur l'existence d'une équation fonctionnelle régulière.- How good are real pictures?.- 1 Introduction.- 2 Comparison of real and complex discriminants and images.- 3 Codimension 1 germs.- 4 Good real forms and their perturbations.- 5 Bad real pictures.- Weighted homogeneous complete intersections.- 1 Introduction.- 2 Notation.- 3 Ideals and C-equivalence.- 4 Submodules.- 5 K-equivalence.- 6 Combinatorial arguments.- 7 A-equivalence.- 8 Other ground fields.- III Curves and Surfaces.- Degree 8 and genus 5 curves in ?3 and the Horrocks-Mumford bundle.- 1 Construction of curves of degree 8 and genus 5 on a Kummer surface S ? ?3.- 2 Barth's Construction.- 3 A generic curve of degree 8 and genus 5 in ?3.- Irreducible Polynomials of k((X))[Y].- 1 Introduction.- 2 Reduction of the Problem.- 3 Some Maximal Ideals of k?X?[Y].- 4 Irreducibility Criterion for Monic Polynomials of k?X?[Y].- 5 Some Ideas to Compute V[n/2](P).- Examples of Abelian Surfaces with Polarization type (1,3).- 1 Abstract.- 2 Introduction.- 3 Preliminaries.- 4 First examples: products of elliptic curves.- 5 The two-dimensional families of T-invariant quartic surfaces.- 6 The Family FAE.- 7 The Family t?1(L0, 1, 2).- 8 The Family FAB ? TAE.- Semigroups and Clusters at Infinity.- 1 Introduction.- 2 The concept of approximant.- 3 Curves associated to a semigroup.- 4 A family of examples.- Cubic surfaces with double points in positive characteristic.- 1 Introduction.- 2 Two characterizations of rational double points.- 3 Singularities and normal forms.- On the classification of reducible curve singularities.- 1 Reducible curve singularities.- 2 Decomposable curves.- 3 Classification.- 4 Deformations and smoothings.