activity
20112024
most citedPure exact structures and the pure derived category of a scheme

4 citations · 7 across the 7 of their papers we have counts for

collaborators

10 papers

math.CT2024

Transfer of homological objects in exact categories via adjoint triples. Applications to functor categories

Sergio Estrada, Manuel Cortés-Izurdiaga, Sinem Odabasi

For a given family of adjoint triples between exact categories or , we show that any cotorsio…

math.AG2023

K-flatness in Grothendieck categories: Application to quasi-coherent sheaves

Sergio Estrada, James Gillespie, Sinem Odabaşı

Let be any closed symmetric monoidal Grothendieck category. We show that K-flat covers exist universally in the category of chain complexes and that the Ver…

math.CT2022★ 3 cited

Torsion and torsion-free classes from objects of finite type in Grothendieck categories

Daniel Bravo, Sinem Odabaşı, Carlos E. Parra +1

In an arbitrary Grothendieck category, we find necessary and sufficient conditions for the class of -injective objects to be a torsion class. By doing so, we propose a…

math.CT2019

The tensor embedding for a grothendieck cosmos

Henrik Holm, Sinem Odabasi

While the Yoneda embedding and its generalizations have been studied extensively in the literature, the so-called tensor embedding has only received little attention. In this paper…

math.CT2017

Completeness of the induced cotorsion pairs in categories of quiver representations

Sinem Odabasi

Given a complete hereditary cotorsion pair in an abelian category satisfying certain conditions, we study the completeness of the induced…

math.KT2016

Phantom covering ideals in categories without enough projective morphisms

Sergio Estrada, Pedro A. Guil Asensio, Sinem Odabasi

We give sufficient conditions to ensure that the ideal of -phantom maps in a locally -presentable exact category is (spe…

math.AC2015

Gorenstein flat and projective (pre)covers

Sergio Estrada, Alina Iacob, Sinem Odabasi

We consider a right coherent ring R. We prove that the class of Gorenstein flat complexes is covering in the category of complexes of left R-modules Ch(R). When R is also left n-pe…

math.CT2014★ 4 cited

Pure exact structures and the pure derived category of a scheme

Sergio Estrada, James Gillespie, Sinem Odabaşi

Let be closed symmetric monoidal Grothendieck category. We define the pure derived category with respect to the monoidal structure via a relative injective model categ…

math.AG2013

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…

math.AG2011

A Lazard-like theorem for quasi-coherent sheaves

Sergio Estrada, Pedro A. Guil Asensio, Sinem Odabasi

We study filtration of quasi--coherent sheaves. We prove a version of Kaplansky Theorem for quasi--coherent sheaves, by using Drinfeld's notion of almost projective module and the…