English
Related papers

Related papers: Cauchy completeness and causal spaces

200 papers

We combine the theory of inductive data types with the theory of universal measurings. By doing so, we find that many categories of algebras of endofunctors are actually enriched in the corresponding category of coalgebras of the same…

Category Theory · Mathematics 2023-07-21 Paige Randall North , Maximilien Péroux

We prove in particular that the Lipschitz-free space over a finitely-dimensional normed space is complemented in its bidual. For Euclidean spaces the norm of the respective projection is $1$. As a tool to obtain the main result we establish…

Functional Analysis · Mathematics 2019-05-03 Marek Cúth , Ondřej F. K. Kalenda , Petr Kaplický

We introduce a new type of norm for ordered vector spaces majorized by a proper (convex) cone that generalizes the notions of order unit norm and base norm. Then we give sufficient conditions to ensure its completeness. In the case of…

Functional Analysis · Mathematics 2022-01-07 Vasco Schiavo

We construct a model structure on the category of small categories enriched over a combinatorial closed symmetric monoidal model category satisfying the monoid axiom. Weak equivalences are Dwyer-Kan equivalences, i.e. enriched functors…

Algebraic Topology · Mathematics 2024-08-06 Fernando Muro

We associate a rational number $\chi(\mathcal{A})$ to every category $\mathcal{A}$ whose object and morphism sets are finite. We show that the assignment $\chi$ is additive under disjoint union and it preserves products. Hence we consider…

Category Theory · Mathematics 2024-06-06 Mustafa Akkaya , Özgün Ünlü

We generalize the correspondence between theories and monads with arities of arXiv:1101.3064 to $\infty$-categories. Additionally, we introduce the notion of complete theories that is unique to the $\infty$-categorical case and provide a…

Category Theory · Mathematics 2021-06-01 Roman Kositsyn

Homotopy limits and colimits are homotopical replacements for the usual limits and colimits of category theory, which can be approached either using classical explicit constructions or the modern abstract machinery of derived functors. Our…

Algebraic Topology · Mathematics 2009-07-01 Michael Shulman

We define the Drinfeld center of a monoidal category enriched over a braided monoidal category, and show that every modular tensor category can be realized in a canonical way as the Drinfeld center of a self-enriched monoidal category. We…

Category Theory · Mathematics 2020-06-05 Liang Kong , Hao Zheng

We introduce a class of variational principles on measure spaces which are causal in the sense that they generate a relation on pairs of points, giving rise to a distinction between spacelike and timelike separation. General existence…

Mathematical Physics · Physics 2014-04-23 Felix Finster

The idea of $C^*$-algebra valued metric spaces was given by Z. Ma et al \cite{111} in 2014. Here we have studied the ideas of $I$-Cauchy and $I^*$-Cauchy sequences and their properties in such spaces and also we give the idea of…

General Topology · Mathematics 2018-11-15 Amar Kumar Banerjee , Anirban Paul

We develop relativistic causality theory in the setting of point-free topology by introducing a notion of causal coverage in ordered locales, generalising their canonical coverage relation to incorporate causal structure. This improves…

Mathematical Physics · Physics 2025-10-21 Chris Heunen , Nesta van der Schaaf

We provide a diagrammatic criterion for the existence of an absolute colimit in the context of enriched category theory.

Category Theory · Mathematics 2014-10-02 Richard Garner

By designating vertices with variables, a simple undirected graph can be augmented to have an associated representing rational function in two variables taking the complex bi-upper halfplane to itself. We give relations between representing…

Complex Variables · Mathematics 2025-11-05 Lily Adlin , Giovani Thai , Samuel Tiscareno , Ryan Tully-Doyle

We define the notion of {\em rational presentation of a complete metric space} in order to study metric spaces from the algorithmic complexity point of view. In this setting, we study some presentations of the space $\czu$ of uniformly…

Numerical Analysis · Mathematics 2025-08-22 Henri Lombardi , Salah Labhalla , E. Moutai

This paper introduces a skew variant of the notion of enriched category, suitable for enrichment over a skew-monoidal category, the main novelty of which is that the elements of the enriched hom-objects need not be in bijection with the…

Category Theory · Mathematics 2018-10-09 Alexander Campbell

We prove that the sequence of cones of metric measure spaces converges if the sequence of base spaces converges in Gromov's box, concentration, and weak topologies. As an application, we show that the generalized Cauchy distribution with…

Metric Geometry · Mathematics 2024-02-23 Syota Esaki , Daisuke Kazukawa , Ayato Mitsuishi

Computable analysis and effective descriptive set theory are both concerned with complete metric spaces, functions between them and subsets thereof in an effective setting. The precise relationship of the various definitions used in the two…

Logic in Computer Science · Computer Science 2016-06-29 Vassilios Gregoriades , Tamás Kispéter , Arno Pauly

This paper gives a uniform-theoretic refinement of classical homotopy theory. Both cubical sets (with connections) and uniform spaces admit classes of weak equivalences, special cases of classical weak equivalences, appropriate for the…

Algebraic Topology · Mathematics 2021-09-20 Sanjeevi Krishnan , Crichton Ogle

The lifting theorem of Valdivia concerning (pre) compact sets and convergent (respectively, Cauchy) sequences from a quasi-(LB) space to a metrizable, strictly barrelled space is extended to a strictly larger collection of range spaces.…

Functional Analysis · Mathematics 2022-06-01 Thomas E. Gilsdorf

In this article we introduce and study a natural form of expansivity, that we call \textit{metric-independent expansiveness}, for group actions on metrizable spaces. This notion means \textit{expansive with respect to every compatible…

Dynamical Systems · Mathematics 2026-03-24 Alfonso Artigue , Luis Ferrari
‹ Prev 1 8 9 10 Next ›