Results 21 to 30 of about 19,289 (184)

Twisted separability for adjoint functors [PDF]

open access: bronzeTheory and Applications of Categories
Twisted separable functors generalize the separable functors of Nastasescu, Van den Bergh and Van Oystaeyen, and provide a convenient tool to compare various projective dimensions. We discuss when an adjoint functor is twisted separable, obtaining a version of Rafael's Theorem in the twisted case.
Julien Bichon
openaire   +5 more sources

Adjoint functor theoremsfor lax-idempotent pseudomonads [PDF]

open access: greenTheory and Applications of Categories, 2023
For each pair of lax-idempotent pseudomonads $R$ and $I$, for which $I$ is locally fully faithful and $R$ distributes over $I$, we establish an adjoint functor theorem, relating $R$-cocontinuity to adjointness relative to $I$. This provides a new perspective on the nature of adjoint functor theorems, which may be seen as methods to decompose ...
Arkor, Nathanael   +2 more
openaire   +4 more sources

Adjoint functors and triples [PDF]

open access: bronzeIllinois Journal of Mathematics, 1965
Eilenberg, Samuel, Moore, John C.
openaire   +4 more sources

Resolving resolution dimensions in triangulated categories

open access: yesOpen Mathematics, 2021
Let T{\mathcal{T}} be a triangulated category with a proper class ξ\xi of triangles and X{\mathcal{X}} be a subcategory of T{\mathcal{T}}. We first introduce the notion of X{\mathcal{X}}-resolution dimensions for a resolving subcategory of T{\mathcal{T}}
Ma Xin, Zhao Tiwei
doaj   +1 more source

On Adjoint Dynamical Systems [PDF]

open access: yes, 1973
Transformations of dynamical systems and organismic structures are discussed in terms of adjoint, simple adjoint and weak adjoint functors of organismic supercategories during development and evolution of organisms on markedly different timescales.
Baianu, Prof. Dr. I. C.   +1 more
core   +1 more source

On the computation of fusion over the affine Temperley–Lieb algebra

open access: yesNuclear Physics B, 2018
Fusion product originates in the algebraization of the operator product expansion in conformal field theory. Read and Saleur (2007) introduced an analogue of fusion for modules over associative algebras, for example those appearing in the description of ...
Jonathan Belletête, Yvan Saint-Aubin
doaj   +1 more source

Categorical Equivalences from State-Effect Adjunctions [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2019
From every pair of adjoint functors it is possible to produce a (possibly trivial) equivalence of categories by restricting to the subcategories where the unit and counit are isomorphisms.
Robert Furber
doaj   +1 more source

Resolution Dimension Relative to Resolving Subcategories in Extriangulated Categories

open access: yesMathematics, 2021
Let (C,E,s) be an extriangulated category with a proper class ξ of E-triangles and X a resolving subcategory of C. In this paper, we introduce the notion of X-resolution dimension relative to the subcategory X in C, and then give some descriptions of ...
Lingling Tan, Li Liu
doaj   +1 more source

Frobenius reciprocity and the Haagerup tensor product [PDF]

open access: yes, 2017
In the context of operator-space modules over C*-algebras, we give a complete characterisation of those C*-correspondences whose associated Haagerup tensor product functors admit left adjoints.
Crisp, Tyrone
core   +3 more sources

Co-Frobenius corings and adjoint functors

open access: yesJournal of Pure and Applied Algebra, 2008
We study co-Frobenius and more generally Quasi-co-Frobenius corings over arbitrary baserings and over PF baserings in particular. We generalize some results about (Quasi-) co-Frobenius coalgebras to the case of non-commutative base rings and give several new characterisations for co-Frobenius and Quasi-co-Frobenius corings, some of them are new even in
Iovanov, Miodrag, Vercruysse, Joost
openaire   +5 more sources

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