Universal deformation rings need not be complete intersections

Frauke M. Bleher; Ted Chinburg

Comptes Rendus. Mathématique, Volume 342 (2006) no. 4 p. 229-232

Deformations and derived categories

Frauke M. Bleher; Ted Chinburg

Comptes Rendus. Mathématique, Volume 334 (2002) no. 2 p. 97-100