Rafael Parra

activity

20092026

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math.RA2026

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

Rafael Parra, Marco A. P{é}rez

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 abo…

math.RA2026

On $(n, d)$ -Coherence and Its Applications to Algebraic $K$ -Theory

Rafael Parra

We introduce a unified approach to finiteness conditions in homological algebra and algebraic $K$ -theory by studying the class of $(n, d)$ -coherent rings, defined for $n\in…

n-Absolutely pure and n-flat modules, revisited

On (n,d)-Coherence and Its Applications to Algebraic K-Theory

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

On $(n, d)$ -Coherence and Its Applications to Algebraic $K$ -Theory