Cotangent cohomology of Stanley-Reisner rings
Klaus Altmann Jan Arthur Christophersen
Simplicial complexes X provide commutative rings A(X) via the Stanley-
Reisner construction. We calculated the cotangent cohomology, i.e., T 1and
T 2of A(X) in terms of X. These modules provide information about the
deformation theory of the algebro geometric objects assigned to X.