English
Related papers

Related papers: A cartesian presentation of weak n-categories

200 papers

We introduce the dendroidal analogs of the notions of complete Segal space and of Segal category, and construct two appropriate model categories for which each of these notions corresponds to the property of being fibrant. We prove that…

Category Theory · Mathematics 2013-03-26 Denis-Charles Cisinski , Ieke Moerdijk

We give an example of a morphism of simplicial sets which is a monomorphism, bijective on 0-simplices, and a weak categorical equivalence, but which is not inner anodyne. This answers an open question of Joyal. Furthermore, we use this…

Algebraic Topology · Mathematics 2019-10-22 Alexander Campbell

We give a new proof that the opposite of Joyal's disk category $\mathcal{D}_n$ is Berger's wreath product category $\Theta_n = \Delta\wr\cdots\wr\Delta$. Our techniques continue to apply when the simplex category $\Delta$ is replaced by…

Category Theory · Mathematics 2025-09-16 Nicholas Cecil , Benjamin Cooper

We describe a comparison between pretriangulated differential graded categories and certain stable infinity categories. Specifically, we use a model category structure on differential graded categories over k (a field of characteristic 0)…

Algebraic Topology · Mathematics 2016-09-13 Lee Cohn

We introduce a new model structure on the category of dendroidal spaces, designed to provide a further model for the homotopy theory of $\infty$-operads. This model is directly analogous to a recent construction on the category of…

Algebraic Topology · Mathematics 2026-01-15 João Candeias , Javier J. Gutiérrez

In this article we study a generalization of the n-inner product which we name weak n-inner product. As particular case we consider the n-iterated 2-inner product and we give its representation in terms of the standard k-inner products, k<=…

Classical Analysis and ODEs · Mathematics 2020-11-23 Nicusor Minculete , Radu Paltanea

In previous work, we showed that there are appropriate model category structures on the category of simplicial categories and on the category of Segal precategories, and that they are Quillen equivalent to one another and to Rezk's complete…

Algebraic Topology · Mathematics 2013-01-04 Julia E. Bergner

We consider four categories: the category of diagrams of small categories indexed by a given small category O, the (comma) category of small categories over O, the category of diagrams of simplicial sets indexed by O, and the category of…

Algebraic Topology · Mathematics 2007-05-23 Steven R. Costenoble

The category of dendroidal sets is an extension of that of simplicial sets, suitable for defining nerves of operads rather than just of categories. In this paper, we prove some basic properties of inner Kan complexes in the category of…

Algebraic Topology · Mathematics 2011-03-22 Ieke Moerdijk , Ittay Weiss

We introduce "weakly chained spaces", which need not be locally connected or path connected, but for which one has a reasonable notion of generalized fundamental group and associated generalized universal cover. We show that in the compact…

Algebraic Topology · Mathematics 2021-03-16 Conrad Plaut

We establish a model structure on the category of strict omega-categories. The constructions leading to the model structure in question are expressed entirely within the scope of omega-categories, building on a set of generating…

Category Theory · Mathematics 2009-06-17 Yves Lafont , Francois Metayer , Krzysztof Worytkiewicz

We study and relate categories of modules, comodules and contramodules over a representation of a small category taking values in (co)algebras, in a manner similar to modules over a ringed space. As a result, we obtain a categorical…

Rings and Algebras · Mathematics 2023-02-15 Mamta Balodi , Abhishek Banerjee , Samarpita Ray

Herschend-Liu-Nakaoka introduced the notion of $n$-exangulated categories. It is not only a higher dimensional analogue of extriangulated categories defined by Nakaoka-Palu, but also gives a simultaneous generalization of $(n+2)$-angulated…

Category Theory · Mathematics 2020-11-03 Jian He , Panyue Zhou

We provide conditions for a category with a fiber functor to be equivalent to the category of representations of a linear differential algebraic group. This generalizes the notion of a neutral Tannakian category used to characterize the…

Representation Theory · Mathematics 2009-02-25 Alexey Ovchinnikov

In this paper we define a notion of Witt group for sesquilinear forms in hermitian categories, which in turn provides a notion of Witt group for sesquilinear forms over rings with involution. We also study the extension of scalars for…

Representation Theory · Mathematics 2013-01-01 Eva Bayer-Fluckiger , Daniel Moldovan

In [BaSc2] the authors introduced a much weaker homotopical structure than a model category, called a "weak cofibration category". We further showed that a small weak cofibration category induces in a natural way a model category structure…

Algebraic Topology · Mathematics 2016-10-27 Ilan Barnea , Tomer M. Schlank

In Quillen's paper on rational homotopy theory, the category of 1-reduced simplicial sets is endowed with a family of model structures, the most prominent of which is the one in which the weak equivalences are the rational homotopy…

Algebraic Topology · Mathematics 2026-02-13 Eleftherios Chatzitheodoridis

We introduce categories of weak factorization algebras and factorization spaces, and prove that they are equivalent to the categories of ordinary factorization algebras and spaces, respectively. This allows us to define the pullback of a…

Algebraic Geometry · Mathematics 2019-11-06 Emily Cliff

We propose a recursive definition of V-n-categories and their morphisms. We show that for V k-fold monoidal the structure of a (k-n)-fold monoidal strict (n+1)-category is possessed by V-n-Cat. This article is a completion of the work begun…

Category Theory · Mathematics 2007-05-23 Stefan Forcey

We define a differential Tannakian category and show that under a natural assumption it has a fibre functor. If in addition this category is neutral, that is, the target category for the fibre functor are finite dimensional vector spaces…

Representation Theory · Mathematics 2013-03-05 Alexey Ovchinnikov
‹ Prev 1 3 4 5 6 7 10 Next ›