arXiv: Experimental full text search
NCG (Algebra and noncommutative geometry)?, AG (Algebraic geometry)?, CT (Category theory)?
Kth
This might mean several different things. Possible references:
Quillen: On the (co)-homology of commutative rings. 1970.
Harrison: Commutative algebras and cohomology
See also Hochschild homology, and papers by Gerstenhaber
Book by M. Andre: Homologie des alg`ebres commutatives
Quillen: Cohomology of commutative rings. Survey in PSPUM XVII Applications of categorical algebra.
nLab page on Cohomology of commutative rings