On the minimal free resolution of the universal ring for resolutions of length two

Andrew R. Kustin, Jerzy M. Weyman

Hochster established the existence of a commutative noetherian ring $\tilde{C}$ and a universal resolution $U$ of the form $0\to {\tilde{C}}^e\to {\tilde{C}}^f\to {\tilde{C}}^g\to 0$ s…