K3 Surfaces and Their Moduli

Introduction.-Samuel Boissière, Andrea Cattaneo, MarcNieper-Wisskirchen, and Alessandra Sarti: The automorphism group of theHilbert scheme of two points on a generic projective K3 surface.- Igor Dolgachev: Orbital counting ofcurves on algebraic surfaces and sphere packings.- V. Gritsenko and K. Hulek: Moduli of polarized Enriques surfaces.- Brendan Hassett and Yuri Tschinkel: Extremalrays and automorphisms of holomorphic symplectic varieties.- Gert Heckman and Sander Rieken: An oddpresentation for W(E_6).- S. Katz, A.Klemm, and R. Pandharipande, with an appendix by R. P. Thomas: On themotivic stable pairs invariants of K3 surfaces.- Shigeyuki Kondö: The Igusa quartic and Borcherds products.- Christian Liedtke: Lectures onsupersingular K3 surfaces and the crystalline Torelli theorem.- Daisuke Matsushita: On deformations ofLagrangian fibrations.- G. Oberdieck andR. Pandharipande: Curve counting on K3 x E, the Igusa cusp form X_10, anddescendent integration.- Keiji Oguiso:Simple abelian varieties and primitive automorphisms of null entropy ofsurfaces.- Ichiro Shimada: Theautomorphism groups of certain singular K3 surfaces and an Enriques surface.- Alessandro Verra: Geometry of genus 8Nikulin surfaces and rationality of their moduli.- Claire Voisin: Remarks and questions on coisotropic subvarietiesand 0-cycles of hyper-Kähler varieties.