English
Related papers

Related papers: A note on compactly generated co-t-structures

200 papers

A co-valuation is, essentially, a minimal finite cover. We introduce a logic based on co-valuations, which play the role of valuations of free variables in classical first-order logic, and show that the fundamental tools of model theory --…

Logic · Mathematics 2026-01-06 Maciej Malicki

We generalise recent results about quasi-Cartan, Cartan and diagonal subalgebras by introducing graded versions. We show that there is a correspondence between graded algebraic quasi-Cartan/ Cartan/ diagonal pairs and certain graded twisted…

Rings and Algebras · Mathematics 2025-06-02 Lisa Orloff Clark , Lynnel D. Naingue , Jocelyn P. Vilela

We introduce the notion of Rota-Baxter coalgebra which can be viewed as the dual notion of Rota-Baxter algebra. We provide some concrete examples and establish various properties of this new object. We also consider comodules over…

Rings and Algebras · Mathematics 2021-10-05 Run-Qiang Jian , Jiao Zhang

The purpose of this paper is to establish Hyodo--Kato theory with compact support for semistable schemes through rigid analytic methods. To this end we introduce several types of log rigid cohomology with compact support. moreover we show…

Algebraic Geometry · Mathematics 2024-05-09 Veronika Ertl , Kazuki Yamada

We introduce the notion of an ordered face structure. The ordered face structures to many-to-one computads are like positive face structures to positive-to-one computads. This allow us to give an explicit combinatorial description of…

Category Theory · Mathematics 2008-06-17 Marek Zawadowski

By making use of the generalized concept of orthogonality in Latin squares, certain t-partite graphs have been constructed and a suggestion for a net work system and some applications have been made.

Discrete Mathematics · Computer Science 2007-05-23 R. N. Mohan , Moon Ho Lee , Subhash Pokrel

Characteristic properties of corings with a grouplike element are analysed. Associated differential graded rings are studied. A correspondence between categories of comodules and flat connections is established. A generalisation of the…

Rings and Algebras · Mathematics 2007-05-23 Tomasz Brzezinski

In this paper we introduce the notion of a 'generalised' co-slicing of a triangulated category. This generalises the theory of co-stability conditions in a manner analogous to the way in which Gorodentsev, Kuleshov and Rudakov's…

Category Theory · Mathematics 2015-04-22 Peter Jorgensen , David Pauksztello

Structured and decorated cospans are broadly applicable frameworks for building bicategories or double categories of open systems. We streamline and generalize these frameworks using central concepts of double category theory. We show that,…

Category Theory · Mathematics 2023-12-15 Evan Patterson

We formulate some refinements and complements to the categorical local Langlands conjecture of Fargues-Scholze. In particular, we state the expected compatibilities with Eisenstein series and duality, and explain some of their consequences.…

Number Theory · Mathematics 2024-09-12 David Hansen

We consider residue structures $R/G$ where $(G,+)$ is an additive subgroup of a ring $(R,+,\cdot)$, not necessarily an ideal. Special instances include Krasner's construction of quotient hyperfields, and Pumpluen's construction of…

Rings and Algebras · Mathematics 2024-03-19 Louis H. Rowen

In this article, we construct a cofibrantly generated model structure on the category of spaces stratified over a fixed poset, and show that it is Quillen-equivalent to a category of diagrams of simplicial sets. Then, considering all those…

Algebraic Topology · Mathematics 2021-03-10 Sylvain Douteau

A characterization of t-normed integrals was obtained in \cite{CLM} for finite compacta and in \cite{Rad} for the general case. Such characterization establishes a correspondence between the space of capacities and homogeneous respect…

General Topology · Mathematics 2022-10-14 Taras Radul

This survey-style note reviews constructive versions of the Peter--Weyl theorem in the Bishop--Coquand--Spitters line. Its main purpose is to clarify which parts of the classical Peter--Weyl package admit constructive reformulations, which…

Functional Analysis · Mathematics 2026-03-19 Takao Inoué

We built some congruences on semigroups, from where a decomposition of quasi-separative semigroups was obtained.

Group Theory · Mathematics 2007-05-23 Yu. I. Krasilnikova , B. V. Novikov

We construct new compactifications with good properties of moduli spaces of maps from nonsingular marked curves to a large class of GIT quotients. This generalizes from a unified perspective many particular examples considered earlier in…

Algebraic Geometry · Mathematics 2011-07-22 Ionut Ciocan-Fontanine , Bumsig Kim , Davesh Maulik

We introduce the notion of crystallographic T-duality, inspired by the appearance of $K$-theory with graded equivariant twists in the study of topological crystalline materials. Besides giving a range of new topological T-dualities, it also…

High Energy Physics - Theory · Physics 2019-02-13 Kiyonori Gomi , Guo Chuan Thiang

In this short note is on the equivalence between non-Newtonian metric (particularly multiplicative metric) and metric. We present a different proof the fact that the notion of a non-Newtonian metric space is not more general than that of a…

Functional Analysis · Mathematics 2016-03-14 Bahri Turan , Cuneyt Cevik

We develop a general structure theory for compact homogeneous Riemannian manifolds in relation to the co-index of symmetry. We will then use these results to classify irreducible, simply connected, compact homogeneous Riemannian manifolds…

Differential Geometry · Mathematics 2013-12-23 Jurgen Berndt , Carlos Olmos , Silvio Reggiani

Given an extension $0\to V\to G\to Q\to1$ of locally compact groups, with $V$ abelian, and a compatible essentially bijective $1$-cocycle $\eta\colon Q\to\hat V$, we define a dual unitary $2$-cocycle on $G$ and show that the associated…

Operator Algebras · Mathematics 2023-12-04 Pierre Bieliavsky , Victor Gayral , Sergey Neshveyev , Lars Tuset