Local Moduli and Singularities by Olav Arnfinn Laudal, Gerhard Pfister.
This research monograph sets out to study the notion of a local moduli suite of algebraic objects like e.g. schemes, singularities or Lie algebras and provides a framework for this. The basic idea is to work with the action of the kernel of the Kodaira-Spencer map, on the base space of a versal fami...
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