Cursos para Estudiantes

Durante la primera semana (15 de agosto) se van a dictar 4 cursos para estudiantes en Buenos Aires. Horarios.
Cada curso tendrÃ¡ 5 clases de entre 60 y 90 minutos que, en algunos casos, incluirÃ¡n ejercicios a ser resueltos por los alumnos. Todas las clases serÃ¡n en inglÃ©s.
Los primeros dos cursos tratan temas bÃ¡sicos de GeometrÃa Algebraica y tienen aplicaciones a la FÃsica, Sistemas DinÃ¡micos y CÃ¡lculos efectivos. El tercer curso es sobre un tema emergente, con aplicaciones a la Conjetura Espejo, degeneraciÃ³n de variedades algebraicas, EstadÃstica Algebraica, etc. El cuarto curso es sobre el tema bien establecido de la aplicaciÃ³n de la teorÃa de curvas algebraicas sobre cuerpos finitos.
Michel Brion (Grenoble) es, tambiÃ©n, un coorganizador de esta Escuela.
Lecturer: Joe Harris (Harvard)
The basics of intersection theory and its applications: cycles, rational equivalence, intersection products, pushforwards and pullbacks; applications to the geometry of Veronese varieties, Segre varieties and plane cubics.
Chern classes: motivation, definition and key properties; applications to linear spaces on hypersurfaces and singular elements of linear series.
Parameter spaces: the choice of parameter space in solving an enumerative problem; application to the 5conic problem.
Projective bundles: Chow ring of a projective bundle and the classes of its tangent bundle; applications to the 8conic problem and secant varieties to rational curves.
Excess intersection: examples in low dimension, proofs in special cases and a proof in general; applications to the Chow ring of a blowup and the double point formula.
Possible additional advanced topics: Porteous' formula; the GrothendieckRiemannRoch formula.
Lecturer: Robin Hartshorne (UC Berkeley)
Abstract: This will be an introductory course, assuming only a basic knowledge of algebraic geometry in the language of schemes and cohomology. Topics will include the notion of a deformation as a flat family; firstorder deformations of subschemes, abstract varieties, line bundles, vector bundles; higherorder deformations and the formal notion of prorepresentable functors; the problem of global moduli and various extensions of the concept of schemealgebraic spaces, stacks to accommodate the spaces that arise as moduli. Many examples will be given to illustrate these concepts.
Note: A Graduate Text book on "Deformation Theory" by Prof. Hatshorne is being published by Springer.
Lecturer: Diane Maclagan (Warwick)
Abstract: This course will provide an elementary introduction to the emerging field of tropical algebraic geometry, where a variety is replaced by a combinatorial shadow, known as the tropical variety. The lectures will define these objects, and explore what is preserved under this "tropicalization" procedure. No prior knowledge of algebraic geometry will be assumed. A preliminary outline of the course is as Ã‚Â follows:
Note: Professor Maclagan is preparing a book on Tropical Geometry, jointly with Bernd Sturmfels.
Lecturer: Peter Beelen (Copenhaguen)
Abstract: In this course we will introduce algebraic geometry codes, discuss their construction and their decoding. Since the introduction of these codes in the 1980's many developments took place. In the first place the underlying algebraic objects, namely algebraic curves and varieties with many points have been understood in a better and more explicit way. In the second place faster decoding algorithms have become available. In the course we will discuss some of these explicit constructions, among others asymptotically optimal towers of function fields. Also we will consider several decoding algorithms, among others the majority voting algorithm and the GuruswamiSudan listdecoding algorithm. When time allows we will also mention some more recent applications to cryptography.