159 citations · 309 across the 28 of their papers we have counts for
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math.AC2013
Strong global dimension of commutative rings and schemes
Ragnar-Olaf Buchweitz, Hubert Flenner
The strong global dimension of a ring is the supremum of the length of perfect complexes that are indecomposable in the derived category. In this note we characterize the noetheria…
math.AC2005
Power series rings and projectivity
R. -O. Buchweitz, H. Flenner
We show that a formal power series ring over a noetherian ring is not a projective module unless is artinian. However, if is local, then $A[[X]…
math.AC2005
Codimension and connectedness of degeneracy loci over local rings
Hubert Flenner, Bernd Ulrich
We deduce results on the dimension and connectedness of degeneracy loci of maps of finite modules over a local noetherian ring . We show for instance…