over 2000 pages, 154Mb, 1962-1964, published in 1977 by Springer-Verlag: Berlin, New York and Heidelberg
Abstract:
The subject of SGA3 is "Schemes in Groups", or group theory.
Volume 1: "General properties of schemes in groups."
Also provides a representation of Chevalley's results on semi-simple algebraic groups in the framework of schemes.
AMS Subject classifications: 14C15, 14F05,14F20,14G10,14G13,14H35,14M15,16A62,18F30.
Rights:
open access: http://modular.fas.harvard.edu/sga/index.html