books.google.hr - "The basic problem of deformation theory in algebraic geometry involves watching a small deformation of one member of a family of objects, such as varieties, or subschemes in a fixed space, or vector bundles on a fixed scheme. In this new book, Robin Hartshorne studies first what happens over small infinitesimal...http://books.google.hr/books/about/Deformation_Theory.html?hl=hr&id=bwhEX01JlXkC&utm_source=gb-gplus-shareDeformation Theory
