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Related papers: Continuous cluster categories I

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We study monoidal categorifications of certain monoidal subcategories $\mathcal{C}_J$ of finite-dimensional modules over quantum affine algebras, whose cluster algebra structures coincide and arise from the category of finite-dimensional…

Quantum Algebra · Mathematics 2019-04-03 Masaki Kashiwara , Myungho Kim , Se-jin Oh , Euiyong Park

Let $R$ be any ring with identity. We show that the homotopy category of all acyclic chain complexes of pure-projective $R$-modules is a compactly generated triangulated category. We do this by constructing abelian model structures that put…

Algebraic Topology · Mathematics 2022-01-21 James Gillespie

We propose a new framework for categorifying skew-symmetrizable cluster algebras. Starting from an exact stably 2-Calabi-Yau category C endowed with the action of a finite group G, we construct a G-equivariant mutation on the set of maximal…

Representation Theory · Mathematics 2015-09-04 Laurent Demonet

Let $\mathrm{h}\mathscr{C}$ be the homotopy category of a stable infinity category $\mathscr{C}$. Then the homotopy category $\mathrm{h}\mathscr{C}^{\Delta^{1}}$ of morphisms in the stable infinity category $\mathscr{C}$ is also…

Algebraic Geometry · Mathematics 2023-02-22 Kotaro Kawatani

The most commonly known triangulated categories arise from chain complexes in an abelian category by passing to chain homotopy classes or inverting quasi-isomorphisms. Such examples are called `algebraic' because they originate from abelian…

Algebraic Topology · Mathematics 2025-11-05 Stefan Schwede

This paper studies the basic K-theoretic properties of a triangulated persistence category (TPC). This notion was introduced in our earlier papers on triangulation, persistence, and Fukaya categories (arXiv:2304.01785 and arXiv:2104.12258)…

Symplectic Geometry · Mathematics 2024-09-05 Paul Biran , Octav Cornea , Jun Zhang

We prove that the category of c-spaces with continuous maps is not cartesian closed. As a corollary the category of locally finitary compact spaces with continuous maps is also not cartesian closed.

Logic in Computer Science · Computer Science 2023-06-22 Z. Lyu , X. Xie , H. Kou

We present a higher-categorical generalization of the "Karoubi envelope" construction from ordinary category theory, and prove that, like the ordinary Karoubi envelope, our higher Karoubi envelope is the closure for absolute limits. Our…

Category Theory · Mathematics 2025-04-07 Davide Gaiotto , Theo Johnson-Freyd

A detailed analysis of the Fundamental Plane properties of Globular Cluster is performed. If a sample of ordinary King-model clusters is considered, it is found that, in the "S-space" defined by the parameters (log r_c, log sigma_0,…

Astrophysics · Physics 2009-10-30 Michele Bellazzini

We show that the derived wrapped Fukaya category $D^\pi\mathcal{W}(X_{Q}^{d+1})$, the derived compact Fukaya category $D^\pi\mathcal{F}(X_{Q}^{d+1})$ and the cocore disks $L_{Q}$ of the plumbing space $X_{Q}^{d+1}$ form a Calabi--Yau…

Symplectic Geometry · Mathematics 2023-06-16 Hanwool Bae , Wonbo Jeong , Jongmyeong Kim

We develop a unified categorical framework for gauging both continuous and finite symmetries in arbitrary spacetime dimensions. Our construction applies to geometric categories i.e. categories internal to stacks. This generalizes the…

Mathematical Physics · Physics 2026-01-26 Devon Stockall , Matthew Yu

We generalise the notion of cluster structures from the work of Buan-Iyama-Reiten-Scott to include situations where the endomorphism rings of the clusters may have loops. We show that in a Hom-finite 2-Calabi-Yau category, the set of…

Representation Theory · Mathematics 2020-12-21 Aslak Bakke Buan , Bethany Marsh , Dagfinn F. Vatne

We investigate the internal structure of clusters of galaxies in high-resolution N-body simulations of 4 different cosmologies. There is a higher proportion of disordered clusters in critical-density than in low-density universes, although…

We study the general structure of 2-C*-categories closed under conjugation, projections and direct sums. We do not assume units to be simple, i.e. for i_A the 1-unit corresponding to an object A, the space Hom(i_A, i_A) is a commutative…

Category Theory · Mathematics 2007-05-23 Pasquale A. Zito

A locally coherent exact category is a finitely accessible additive category endowed with an exact structure in which the admissible short exact sequences are the directed colimits of admissible short exact sequences of finitely presentable…

Category Theory · Mathematics 2024-07-31 Leonid Positselski

Cluster ensemble is a pair of positive spaces (X, A) related by a map p: A -> X. It generalizes cluster algebras of Fomin and Zelevinsky, which are related to the A-space. We develope general properties of cluster ensembles, including its…

Algebraic Geometry · Mathematics 2009-08-04 V. V. Fock , A. B. Goncharov

In this paper we study the supercluster - cluster morphological properties using one of the largest ($2\times 512^{3}$ SPH+N-body simulations of large scale structure formation in a $\Lambda$CDM model, based on the publicly available code…

Astrophysics · Physics 2016-08-16 S. Basilakos , M. Plionis , G. Yepes , S. Gottlöber , V. Turchanino

We discuss cyclic star-autonomous categories; that is, unbraided star- autonomous categories in which the left and right duals of every object p are linked by coherent natural isomorphism. We settle coherence questions which have arisen…

Category Theory · Mathematics 2010-07-30 Jeff Egger , Micah Blake McCurdy

Let $k$ be a field, $X$ a connected scheme proper over $k$, $D\subsetneq X$ an ample effective connected divisor, $x\in D(k)$. For Tannakian categories $\mathcal{C}_X$ and $\mathcal{C}_D$ whose objects consist of vector bundles on $X$ and…

Algebraic Geometry · Mathematics 2026-04-28 Lingguang Li , Niantao Tian

The core structure of galaxy clusters is fundamentally important. Even though self-gravitating systems have no stable equilibrium state due to their negative heat capacity, numerical simulations find density profiles which are universal in…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Matthias Bartelmann , Marceau Limousin , Massimo Meneghetti , Robert Schmidt