Results 21 to 30 of about 18,171 (278)

New quantum toroidal algebras from 5D N $$ \mathcal{N} $$ = 1 instantons on orbifolds

open access: yesJournal of High Energy Physics, 2020
Quantum toroidal algebras are obtained from quantum affine algebras by a further affinization, and, like the latter, can be used to construct integrable systems.
Jean-Emile Bourgine, Saebyeok Jeong
doaj   +1 more source

Diagram automorphisms of quiver varieties [PDF]

open access: yes, 2014
We show that the fixed-point subvariety of a Nakajima quiver variety under a diagram automorphism is a disconnected union of quiver varieties for the `split-quotient quiver' introduced by Reiten and Riedtmann.
Henderson, Anthony, Licata, Anthony
core   +1 more source

Rational points of quiver moduli spaces [PDF]

open access: yes, 2019
For a perfect field $k$, we study actions of the absolute Galois group of $k$ on the $\bar{k}$-valued points of moduli spaces of quiver representations over $k$; the fixed locus is the set of $k$-rational points and we obtain a decomposition of this ...
Hoskins, Victoria, Schaffhauser, Florent
core   +4 more sources

Counting Quiver Representations over Finite Fields Via Graph Enumeration [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2009
Let $\Gamma$ be a quiver on $n$ vertices $v_1, v_2, \ldots , v_n$ with $g_{ij}$ edges between $v_i$ and $v_j$, and let $\boldsymbol{\alpha} \in \mathbb{N}^n$.
Geir Helleloid   +1 more
doaj   +1 more source

On the Auslander-Reiten Quiver of the Representations of an Infinite Quiver [PDF]

open access: yesAlgebras and Representation Theory, 2012
Let Q be a strongly locally finite quiver and denote by rep(Q) the category of locally finite dimensional representations of Q over some fixed field k. The main purpose of this paper is to get a better understanding of rep(Q) by means of its Auslander-Reiten quiver. To achieve this goal, we define a category C(Q) which is a full, abelian and Hom-finite
openaire   +3 more sources

Homological approach to the Hernandez-Leclerc construction and quiver varieties [PDF]

open access: yes, 2013
In a previous paper the authors have attached to each Dynkin quiver an associative algebra. The definition is categorical and the algebra is used to construct desingularizations of arbitrary quiver Grassmannians.
Feigin, Evgeny   +2 more
core   +1 more source

Transfinite Tree Quivers and their Representations

open access: yesMATHEMATICA SCANDINAVICA, 2013
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 structure of all the indecomposable injective representations of a tree quiver of size an arbitrary cardinal $\kappa$.
Enochs, E., Estrada, S., Ozdemir, S.
openaire   +5 more sources

THE MONOID OF FAMILIES OF QUIVER REPRESENTATIONS [PDF]

open access: yesProceedings of the London Mathematical Society, 2002
A monoid structure on families of representations of a quiver is introduced by taking extensions of representations in families, that is, subvarieties of the varieties of representations. The study of this monoid leads to interesting interactions between representation theory, algebraic geometry and quantum group theory.
openaire   +3 more sources

A Universal Investigation of $n$-representations of $n$-quivers [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2019
noindent We have two goals in this paper. First, we investigate and construct cofree coalgebras over $n$-representations of quivers, limits and colimits of $n$-representations of quivers, and limits and colimits of coalgebras in the monoidal categories ...
Adnan Abdulwahid
doaj  

Homotopy Category of Cotorsion Flat Representations of Quivers [PDF]

open access: yesMathematics Interdisciplinary Research, 2020
Recently in [10], it was proved that over any ring R, there exists a complete cotorsion pair (Kp(Flat-R); K(dg-CotF-R)) in K(Flat-R), the homotopy category of complexes of flat R-modules, where Kp(Flat-R) and K(dg-CotF-R) are the homotopy categories ...
Hossein Eshraghi
doaj   +1 more source

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