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We define and develop the infrastructure of homotopical inverse diagrams in categories with attributes. Specifically, given a category with attributes $C$ and an ordered homotopical inverse category $I$, we construct the category with…

Logic · Mathematics 2026-02-06 Chris Kapulkin , Peter LeFanu Lumsdaine

We use traced monoidal categories to give a precise general version of "geometry of interaction". We give a number of examples of both "particle-style" and "wave-style" instances of this construction. We relate these ideas to semantics of…

Logic in Computer Science · Computer Science 2014-01-22 Samson Abramsky

We develop a notion of iterated monoidal category and show that this notion corresponds in a precise way to the notion of iterated loop space. Specifically the group completion of the nerve of such a category is an iterated loop space and…

Algebraic Topology · Mathematics 2007-05-23 C. Balteanu , Z. Fiedorowicz , R. Schwaenzl , R. Vogt

We construct model category structures for monoids and modules in symmetric monoidal model categories which satisfy an extra axiom, the monoidal axiom, with applications to symmetric spectra and $\Gamma$-spaces.

Algebraic Topology · Mathematics 2020-01-13 Stefan Schwede , Brooke E. Shipley

We give sufficient conditions for homotopical localization functors to preserve algebras over coloured operads in monoidal model categories. Our approach encompasses a number of previous results about preservation of structures under…

Algebraic Topology · Mathematics 2014-02-26 Carles Casacuberta , Javier J. Gutierrez , Ieke Moerdijk , Rainer M. Vogt

Univalent categories constitute a well-behaved and useful notion of category in univalent foundations. The notion of univalence has subsequently been generalized to bicategories and other structures in (higher) category theory. Here, we…

Logic in Computer Science · Computer Science 2023-08-17 Kobe Wullaert , Ralph Matthes , Benedikt Ahrens

Retrieval of classical behaviour in quantum cosmology is usually discussed in the framework of minisuperspace models in the presence of scalar fields together with the inhomogeneous modes either of the gravitational or of the scalar fields.…

General Relativity and Quantum Cosmology · Physics 2007-05-23 O. Bertolami , P. V. Moniz

Lenses are a well-established structure for modelling bidirectional transformations, such as the interactions between a database and a view of it. Lenses may be symmetric or asymmetric, and may be composed, forming the morphisms of a…

Machine Learning · Computer Science 2019-05-03 Brendan Fong , Michael Johnson

We define bicategories internal to 2-categories. When the ambient 2-category is symmetric monoidal categories, this provides a convenient framework for encoding the structures of a symmetric monoidal 3-category. This framework is well…

Category Theory · Mathematics 2016-11-09 Christopher L. Douglas , André G. Henriques

Using the braided version of Lawvere's algebraic theories and Mac Lane's PROPs, we introduce polynomial identities for arbitrary algebraic structures in a braided monoidal category C as well as their codimensions in the case when C is…

Rings and Algebras · Mathematics 2024-12-13 A. S. Gordienko

This paper expands further on a category theoretical formulation of Hochschild cohomology for monoid objects in monoidal categories enriched over abelian groups, which has been studied in arXiv:1605.00842. This topic was also presented at…

Category Theory · Mathematics 2022-01-25 Magnus Hellstrøm-Finnsen

The superform construction of supersymmetric invariants, which consists of integrating the top component of a closed superform over spacetime, is reviewed. The cohomological methods necessary for the analysis of closed superforms are…

High Energy Physics - Theory · Physics 2011-03-28 N. Berkovits , P. S. Howe

We prove coherence theorems for Frobenius pseudomonoids and snakeorators in monoidal bicategories. As a consequence we obtain a 3d notation for proofs in nonsymmetric multiplicative linear logic, with a geometrical notion of equivalence,…

Logic in Computer Science · Computer Science 2023-06-22 Lawrence Dunn , Jamie Vicary

We prove coherence theorems for dualizable objects in monoidal bicategories and for fully dualizable objects in symmetric monoidal bicategories, describing coherent dual pairs and coherent fully dual pairs. These are property-like…

Algebraic Topology · Mathematics 2014-11-26 Piotr Pstrągowski

This paper considers the difficulty in the set-system approach to generalizing graph theory. These difficulties arise categorically as the category of set-system hypergraphs is shown not to be cartesian closed and lacks enough projective…

Combinatorics · Mathematics 2019-05-06 Will Grilliette , Lucas J. Rusnak

The notion of homomorphism indistinguishability offers a combinatorial framework for characterizing equivalence relations of graphs, in particular equivalences in counting logics within finite model theory. That is, for certain graph…

Logic in Computer Science · Computer Science 2025-06-26 Georg Schindling

The category Set_* of sets and partial functions is well-known to be traced monoidal, meaning that a partial function S+U -/-> T+U can be coherently transformed into a partial function S -/-> T. This transformation is generally described in…

Logic in Computer Science · Computer Science 2023-05-03 Kristopher Brown , David I. Spivak

The technique of \emph{equality saturation}, which equips graphs with an equivalence relation, has proven effective for program optimisation. We give a categorical semantics to these structures, called \emph{e-graphs}, in terms of Cartesian…

Logic in Computer Science · Computer Science 2025-05-21 Aleksei Tiurin , Chris Barrett , Dan R. Ghica , Nick Hu

A multicategory is what remains of a monoidal category when monoidal product is not available. A weak multicategory means that hom-sets are in fact categories, and in place of usual equations, there are natural isomorphisms, which have to…

Category Theory · Mathematics 2025-12-11 Volodymyr Lyubashenko

This work contributes to clarifying several relationships between certain higher categorical structures and the homotopy type of their classifying spaces. Bicategories (in particular monoidal categories) have well understood simple…

Category Theory · Mathematics 2010-06-28 P. Carrasco , A. M. Cegarra , A. R. Garzón