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Related papers: Understanding the small object argument

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Social abstract argumentation is a principled way to assign values to conflicting (weighted) arguments. In this note we discuss the important property of the uniqueness of the model.

Let $T$ be an o-minimal theory expanding $\mathrm{RCF}$ and $T_\mathrm{convex}$ be the common theory of its models expanded by predicate for a non-trivial $T$-convex valuation ring. We call an elementary extension $(\mathbb{E}, \mathcal{O})…

Logic · Mathematics 2026-02-09 Pietro Freni , Angus Matthews

We show that in algebraically locally finite countable homogeneous structures with a free stationary independence relation the small index property implies the strong small index property. We use this and the main result of [15] to deduce…

Logic · Mathematics 2018-10-05 Gianluca Paolini , Saharon Shelah

We construct the algebra of fractions of a Weak Bialgebra relative to a suitable denominator set of group-like elements that is `almost central', a condition we introduce in the present article which is sufficient in order to guarantee…

Quantum Algebra · Mathematics 2013-08-09 Steve Bennoun , Hendryk Pfeiffer

We construct a denotational model of linear logic, whose objects are all the locally convex and separated topological vector spaces endowed with their weak topology. The negation is interpreted as the dual, linear proofs are interpreted as…

Logic in Computer Science · Computer Science 2017-01-11 Marie Kerjean

Given an exact category $\mathcal{C}$, we denote by $\mathcal{C}_l$ the smallest additive subcategory containing injectives and indecomposable objects which appear as the first term of an almost split conflation. We prove that a deflation…

Representation Theory · Mathematics 2018-03-09 Pengjie Jiao , Jue Le

We construct a full strongly exceptional collection in the triangulated category of graded matrix factorizations of a polynomial associated to a non-degenerate regular system of weights whose smallest exponents are equal to -1. In the…

Algebraic Geometry · Mathematics 2007-08-02 Hiroshige Kajiura , Kyoji Saito , Atsushi Takahashi

For the minimization of state-based systems (i.e. the reduction of the number of states while retaining the system's semantics), there are two obvious aspects: removing unnecessary states of the system and merging redundant states in the…

Formal Languages and Automata Theory · Computer Science 2025-12-15 Thorsten Wißmann

We consider certain categorical structures that are implicit in subfactor theory. Making the connection between subfactor theory (at finite index) and category theory explicit sheds light on both subjects. Furthermore, it allows various…

Category Theory · Mathematics 2007-05-23 Michael Mueger

In two papers we noted that in common practice many algebraic constructions are defined only `up to isomorphism' rather than explicitly. We mentioned some questions raised by this fact, and we gave some partial answers. The present paper…

Logic · Mathematics 2007-05-23 Wilfrid Hodges , Saharon Shelah

A locally compact group $G$ has the factorization property if the map $$C^*(G)\odot C^*(G)\ni a\otimes b\mapsto \lambda(a)\rho(b)\in\mathcal B(L^2(G))$$ is continuous with respect to the minimal C*-norm. This paper seeks to initiate a…

Operator Algebras · Mathematics 2017-09-28 Matthew Wiersma

We focus on the persistence principle over weak interpretability logic. Our object of study is the logic obtained by adding the persistence principle to weak interpretability logic from several perspectives. Firstly, we prove that this…

Logic · Mathematics 2023-10-03 Sohei Iwata , Taishi Kurahashi , Yuya Okawa

Small model property is an important property that implies decidability. We show that the small model size is directly related to some important resources in games and automata for checking provability.

Logic in Computer Science · Computer Science 2021-11-05 Maciej Zielenkiewicz

This paper formulates a notion of independence of subobjects of an object in a general (i.e. not necessarily concrete) category. Subobject independence is the categorial generalization of what is known as subsystem independence in the…

Mathematical Physics · Physics 2017-09-13 Zalán Gyenis , Miklós Rédei

We give an elementary description of $2$-categories $\mathbf{Cat}\left(\mathcal{E}\right)$ of internal categories, functors and natural transformations, where $\mathcal{E}$ is a category modelling Lawvere's elementary theory of the category…

Category Theory · Mathematics 2025-03-26 Calum Hughes , Adrian Miranda

If M is a model category and Z is an object of M, then there are model category structures on the category of objects of M over Z and the category of objects of M under Z under which a map is a cofibration, fibration, or weak equivalence if…

Algebraic Topology · Mathematics 2015-07-08 Philip S. Hirschhorn

We extend all known results about transferred model structures on algebraically cofibrant and fibrant objects by working with weak model categories. We show that for an accessible weak model category there are always Quillen equivalent…

Category Theory · Mathematics 2020-05-13 John Bourke , Simon Henry

Let $D$ be a large category which is cocomplete. We construct a model structure (in the sense of Quillen) on the category of small functors from $D$ to simplicial sets. As an application we construct homotopy localization functors on the…

Algebraic Topology · Mathematics 2007-05-23 Boris Chorny , William G. Dwyer

We introduce a general method for showing under weak forcing axioms that reduced products of countable models of a theory $T$ have as few automorphisms as possible. We show that such forcing axioms imply that reduced products of countably…

Logic · Mathematics 2024-10-30 Ben De Bondt , Ilijas Farah , Alessandro Vignati

If a locally cartesian closed category carries a weak factorisation system, then the left maps are stable under pullback along right maps if and only if the right maps are closed under pushforward along right maps. We refer to this…

Category Theory · Mathematics 2024-04-25 Wijnand van Woerkom , Benno van den Berg