Gorenstein projective modules over Milnor squares of rings

Abstract

We construct a class of Gorenstein-projective modules over Milnor squares of rings. As an application, we obtain Gorenstein-projective modules over Morita context rings with two bimodule homomorphisms zero in the general setting instead of Artin algebras or Noetherian rings.

Keywords

• gorenstein-projective module
• milnor square of ring
• morita context ring
• fiber product category