Complex algebraic geometry Algebraic geometry can be studied two different ways. You can deduce everything from commutative algebra, as it was done in classical Italian school of algebraic geometry. This is an elementary approach, but not intuitive and using a lot of exhausting work. Instead, as Hodge suggested, the foundation of algebraic geometry can be based on topology and differential geometry. The main tool of this approach is the theory of harmonic forms on Riemannian manifolds, known as "Hodge theory"; in addition, one uses complex analysis, differential geometry and homological algebra. This approach (also called "Hodge theory") is more straightforward and intuitive, but it takes much preliminary work around topology and analysis. Also, Hodge theory works only in characteristic 0. This course is based on differential geometry (manifolds, bundles, connections, de Rham algebra, Stokes' theorem) algebraic topology (de Rham cohomology, intersection theory, Poincare duality) and complex analysis (Taylor decomposition of holomorphic functions). I would assume a few results of spectral theory of Laplacian operators without proof. Program (the list of possible topics for the course) 1. Complex structures, almost complex structures, Hodge decomposition on differential forms. 2. Almost complex manifolds and their integrability, Newlander-Nirenberg theorem for real analytic manifolds. 4. Hermitian metrics, Kahler manifolds, examples and main properties of Kahler manifolds. Fubini-Study metrics. Kahler metrics on homogeneous complex manifolds. 5. Levi-Civita connection on Kahler manifolds and its properties. 6. Supersymmetry on Kahler manifolds and its applications: Kahler identities, Hodge decomposition, Lefschetz theorem, sl(2)-triples and Lefschetz decomposition on cohomology. 7. Currents and generalized functions. Integral kernels. Cauchy kernel. 8. Poincare-Dolbeault-Grothendieck lemma. Dolbeault cohomology. Geometric interpretation of the Hodge decomposition and its applications. 9. Holomorphic differential forms and their properties. Birational maps. Blow-ups. Invariance of holomorphic differential forms under birational maps. Canonical bundle and its properties. 10. Holomorphic bundles. Chern connection, its existence and uniqueness, its curvature. Line bundles, exponential exact sequence, first Chern class and its properties. 11. Supersymmetry algebra of a Kahler manifold, its action on differential forms with coefficients in a bundle. Kodaira-Nakano identities. Kodaira-Nakano vanishing theorem. 12. Globally generated, ample and very ample bundles. Projective embeddings. Kodaira embedding theorem. Algebraic dimension of complex manifolds. Moishezon, complex non-algebraic and non-Kahler manifolds. 13. (*) Abelian manifolds and complex tori. Albanese map and its properties. Holomorphic differentials on Riemann surfaces. 14. (*) Calabi-Yau theorem, Calabi-Yau manifolds, Monge-Ampere equation, classification of Riemannian holonomies and its applications. Last two subjects will be considered if time permits only. Literature Lectures on Kahler geometry, Andrei Moroianu http://moroianu.perso.math.cnrs.fr/tex/kg.pdf Complex analytic and differential geometry, J.-P. Demailly http://www-fourier.ujf-grenoble.fr/~demailly/manuscripts/agbook.pdf Lectures on Kahler manifolds, W. Ballmann http://people.mpim-bonn.mpg.de/hwbllmnn/notes.html C. Voisin, ``Hodge theory''. D. Huybrechts, ``Complex Geometry - An Introduction'' A. Besse, ``Einstein manifolds''.