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math.AG2005
Linear free divisors and quiver representations
Ragnar-Olaf Buchweitz, David Mond
Linear free divisors are free divisors, in the sense of K.Saito, with linear presentation matrix (example: normal crossing divisors). Using techniques of deformation theory on repr…
math.AG1999
A Semiregularity Map for Modules and Applications to Deformations
Ragnar-Olaf Buchweitz, Hubert Flenner
This paper contains the details and complete proofs of our earlier announcement in math.AG/9907004 . We construct a general semiregularity map for algebraic cycles as asked for by…