S
Septimiu Crivei
Researcher at Babeș-Bolyai University
Publications - 69
Citations - 388
Septimiu Crivei is an academic researcher from Babeș-Bolyai University. The author has contributed to research in topics: Abelian group & Abelian category. The author has an hindex of 11, co-authored 67 publications receiving 342 citations.
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Covers in finitely accessible categories
TL;DR: In this paper, it was shown that in a finitely accessible additive category every class of objects closed under direct limits and pure epimorphic images is covering, in particular the classes of flat objects in a locally presented additive category and of absolutely pure objects in locally coherent categories.
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Neat and coneat submodules of modules over commutative rings
TL;DR: In this article, it was shown that a module is absolutely neat if and only if it is injective with respect to the Dickson torsion theory, extending a recent result by Fuchs.
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Rickart and Dual Rickart Objects in Abelian Categories
Septimiu Crivei,Arda Kör +1 more
TL;DR: This work shows how the theory may be employed in order to study relative regular objects and (dual) relative Baer objects in abelian categories and gives applications to module and comodule categories.
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Morita equivalences induced by bimodules over Hopf-Galois extensions
TL;DR: In this article, the category MBHA of relative Hopf bimodules was investigated, and the Morita equivalences between A and B induced by them were shown to exist.
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One-sided exact categories
Silvana Bazzoni,Septimiu Crivei +1 more
TL;DR: One-sided exact additive categories as mentioned in this paper were defined by adding the one-sided part of Quillen's "obscure axiom" to the Grothendieck pretopology.