15 citations · 28 across the 11 of their papers we have counts for
12 papers
Tate-Betti and Tate-Bass numbers
Edgar Enochs, Sergio Estrada, Alina Iacob
We define Tate-Betti and Tate-Bass invariants for modules over a commutative noetherian local ring R. Then we show the periodicity of these invariants provided that R is a hypersur…
Submonoids of the formal power series
Edgar Enochs, Overtoun Jenda, Furuzan Ozbek
Formal power series come up in several areas such as formal language theory , algebraic and enumerative combinatorics, semigroup theory, number theory etc. This paper focuses on th…
Pure injective and absolutely pure sheaves
Edgar Enochs, Sergio Estrada, Sinem Odabaşı
We study two notions of purity in categories of sheaves: the categorical and the geometric. It is shown that pure injective envelopes exist in both cases under very general assumpt…
Gorenstein injective precovers, covers, and envelopes
Edgar Enochs, Sergio Estrada, Alina Iacob
We give a sufficient condition for the class of Gorenstein injective modules be precovering: if is right noetherian and if the class of Gorenstein injective modules, $\mathcal{…
Cartesian modules in small categories
E. Enochs, S. Estrada
In this note we extend the main results of [E. Enochs and S. Estrada, Relative homological algebra in the category of quasi-coherent sheaves. Adv. in Math. 194(2005), 284-295] to t…
Transfinite tree quivers and their representations
E. Enochs, S. Estrada, S. Özdemir
The idea of "vertex at the infinity" naturally appears when studying indecomposable injective representations of tree quivers. In this paper we formalize this behavior and find the…