$n$-Absolutely pure and $n$-flat modules, revisited

Abstract

We revisit the concepts of $n$-absolutely pure and $n$-flat modules, and their relation with $n$-coherent rings in the sense of Lee. We provide new proofs for some known claims about these modules and rings, and show other new properties. We also give some corrections to the existing literature.

30 papes. No AI used. Comments are welcome