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A translation: "Every" finite free resolution is a free resolution of an ideal generated by three elements
"Every" finite free free resolution ideal three elements
2011/2/28
In [4] and [7], Burch and Kohn proved that when R is a commutative Noetherian ring, and n a natural number that is the homological dimension 3 of a torsionless R-module, then there exists an ideal in ...
Testing Linear Dependence of Hyperexponential Elements
Testing Linear Dependence Hyperexponential Elements
2013/9/3
A Wronskian (resp. Casoratian) criterion is useful to test linear dependence of elements in a differential(resp. difference) field over constants. We generalize this criterion for invertible hyperexpo...
On the regular elements in Zn
Regular elements Eular's phi-function von Neumann regular rings
2010/2/25
All rings are assumed to be finite commutative with identity element. An element a \in R is called a regular element if there exists b \in R such that a=a2b, the element b is called a von Neumann inve...