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In a previous paper, we showed that a discrete version of the $S_\bullet$-construction gives an equivalence of categories between unital 2-Segal sets and augmented stable double categories. Here, we generalize this result to the homotopical…

The structure of anticyclic operad on the Dendriform operad defines in particular a matrix of finite order acting on the vector space spanned by planar binary trees. We compute its characteristic polynomial and propose a (compatible)…

Quantum Algebra · Mathematics 2007-05-23 Frédéric Chapoton

The goal of this article is to relate recent developments in cyclic homology theory with the theory of operads and homotopical algebra, and hence to provide a general framework to define and study operations in cyclic homology theory.

Quantum Algebra · Mathematics 2009-10-31 Masoud Khalkhali

Abundant second-order maximally conformally superintegrable Hamiltonian systems are re-examined, revealing their underlying natural Weyl structure and offering a clearer geometric context for the study of St\"ackel transformations (also…

Differential Geometry · Mathematics 2025-07-24 Andreas Vollmer

This paper investigates mapping spaces between enriched operads and relates these spaces to those between operadic bimodules via convenient fiber sequences. The main statements hold for simplicial operads, operads enriched in simplicial…

Algebraic Topology · Mathematics 2026-04-13 Hoang Truong

We endow categories of non-symmetric operads with natural model structures. We work with no restriction on our operads and only assume the usual hypotheses for model categories with a symmetric monoidal structure. We also study categories…

Algebraic Topology · Mathematics 2011-05-31 Fernando Muro

We show that when using the underlying positive model structure on symmetric spectra one obtains cofibrancy conditions for operadic constructions under much milder hypothesis than one would need for general categories. Our main result…

Algebraic Topology · Mathematics 2017-10-25 Luís Alexandre Pereira

We construct several new families of exactly and quasi-exactly solvable BC_N-type Calogero-Sutherland models with internal degrees of freedom. Our approach is based on the introduction of two new families of Dunkl operators of B_N type…

High Energy Physics - Theory · Physics 2009-11-07 F. Finkel , D. Gomez-Ullate , A. Gonzalez-Lopez , M. A. Rodriguez , R. Zhdanov

This paper considers the equivalence problem for quasi-cyclic codes over finite fields. The results obtained are used to construct isodual quasi-cyclic codes.

Information Theory · Computer Science 2016-07-27 Kenza Guenda , T. Aaron Gulliver

We review Bacry and Levy-Leblond's work on possible kinematics as applied to 2-dimensional spacetimes, as well as the nine types of 2-dimensional Cayley-Klein geometries, illustrating how the Cayley-Klein geometries give homogeneous…

Mathematical Physics · Physics 2008-04-24 Alan McRae

In the preceding paper, we have constructed a compactly generated model structure on the category $\dcal$ of diffeological spaces together with the adjoint pairs $|\ |_\dcal : \scal \rightleftarrows \dcal : S^\dcal$ and $\tilde{\cdot} :…

Algebraic Topology · Mathematics 2017-02-15 Hiroshi Kihara

We construct, using finitely many generating cell and relations, props in the category of CW-complexes with the property that their associated operads are models for the $E_\infty$-operad. We use one of these to construct a cellular…

Algebraic Topology · Mathematics 2020-12-21 Anibal M. Medina-Mardones

Let k be a commutative ring with unit. We endow the categories of filtered complexes and of bicomplexes of k-modules, with cofibrantly generated model structures, where the class of weak equivalences is given by those morphisms inducing a…

Algebraic Topology · Mathematics 2020-12-09 Joana Cirici , Daniela Egas Santander , Muriel Livernet , Sarah Whitehouse

We prove the existence of Morita model structures on the categories of small simplicial categories, simplicial sets, simplicial operads and dendroidal sets, modelling the Morita homotopy theory of $(\infty,1)$-categories and…

Algebraic Topology · Mathematics 2019-09-04 Giovanni Caviglia , Javier J. Gutiérrez

We give sufficient conditions for self-orthogonality with respect to symplectic, Euclidean and Hermitian inner products of a wide family of quasi-cyclic codes of index two. We provide lower bounds for the symplectic weight and the minimum…

Information Theory · Computer Science 2019-02-15 Carlos Galindo , Fernando Hernando , Ryutaroh Matsumoto

The deformed supersymmetric sine-Gordon model, obtained through known deformation of the corresponding potential, is found to be quasi-integrable, like its non-supersymmetric counterpart, which was observed earlier. The system expectedly…

Exactly Solvable and Integrable Systems · Physics 2016-12-21 Kumar Abhinav , Partha Guha

A supersymmetric quantum mechanical model is constructed for BPS states bound to surface operators in five dimensional SU(r) gauge theories using D-brane engineering. This model represents the effective action of a certain D2-brane…

High Energy Physics - Theory · Physics 2018-04-13 U. Bruzzo , W. -y. Chuang , D. -E. Diaconescu , M. Jardim , G. Pan , Y. Zhang

Orthogonal spaces are vector spaces together with a quadratic form whose associated bilinear form is non-degenerate. Over fields of characteristic two, there are many quadratic forms associated to a given bilinear form and quadratic…

Logic · Mathematics 2024-08-20 Charlotte Kestner , Nicholas Ramsey

We give a complete and careful proof of Quillen's theorem on the existence of the standard model category structure on the category of topological spaces. We do not assume any familiarity with model categories.

Algebraic Topology · Mathematics 2017-10-24 Philip S. Hirschhorn

Let $X$ be a smooth projective and geometrically irreducible curve over the finite field $\mathbb{F}_q$ with $q$ elements and $K$ be its function field. Let $\infty$ be a fixed closed point on $X$ and $A$ be the ring of functions regular…

Number Theory · Mathematics 2025-10-14 Oğuz Gezmiş , Sriram Chinthalagiri Venkata