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math.AC2005
Cohomology of truncated polynomial lambda-rings
Donald Yau
The lambda-ring cohomology in dimensions 0 and 1 of certain truncated polynomial filtered lambda-rings are computed. The dimension 1 case is related to deformations of lambda-rings…
math.AC2005
Deformation theory of modules
Donald Yau
Algebraic deformations of modules over a ring are considered. The resulting theory closely resembles Gerstenhaber's deformation theory of associative algebras.
math.AC2005
Deformation of algebras over the Landweber-Novikov algebra
Donald Yau
An algebraic deformation theory of algebras over the Landweber-Novikov algebra is obtained.