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Related papers: Stable homotopy hypothesis in the Tamsamani model

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We show that a well behaved Noetherian, finite dimensional, stable, monoidal model category is equivalent to a model built from categories of modules over completed rings in an adelic fashion. For abelian groups this is based on the Hasse…

Algebraic Topology · Mathematics 2020-07-28 J. P. C. Greenlees , Scott Balchin

This work is dedicated to the results were got in the model theory of the regular polygons. We give the characterization of the monoids with axiomatizable and model complete class of regular polygons. We describe the monoids with complete…

Logic · Mathematics 2018-05-09 A. V. Mikhalev , E. V. Ovchinnikova , E. A. Palyutin , A. A. Stepanova

We identify the group of framed diffeomorphisms of the torus as a semi-direct product of the torus with the braid group on 3 strands; we also identify the topological monoid of framed local-diffeomorphisms of the torus in similar terms. It…

Algebraic Topology · Mathematics 2024-07-24 David Ayala , John Francis , Adam Howard

We show that relative compactified Jacobians of one-parameter smoothings of a nodal curve of genus g are Mumford models of the generic fiber. Each such model is given by an admissible polytopal decomposition of the skeleton of the Jacobian.…

Algebraic Geometry · Mathematics 2025-01-07 Karl Christ , Sam Payne , Tif Shen

We introduce a set of combinatorial techniques for studying the simplicial bounded cohomology of semi-simplicial sets, simplicial complexes and posets. We apply these methods to prove several new bounded acyclicity results for…

Algebraic Topology · Mathematics 2023-09-12 Thorben Kastenholz , Robin J. Sroka

We introduce the theory of strong homotopy types of simplicial complexes. Similarly to classical simple homotopy theory, the strong homotopy types can be described by elementary moves. An elementary move in this setting is called a strong…

Geometric Topology · Mathematics 2009-07-20 Jonathan Ariel Barmak , Elias Gabriel Minian

We show nilpotency and completeness results for the homotopy automorphisms of a marked n-stage for an unstable coalgebra. These objects figure in the moduli problem of unstable coalgebras. Our theorems extend classical work of Dror,…

Algebraic Topology · Mathematics 2021-10-19 Manfred Stelzer

Let $n \geq 1$, $p$ a prime, and $T(n)$ any representative of the Bousfield class of the telescope $v_n^{-1}F(n)$ of a finite type $n$ complex. Also, let $E_n$ be the Lubin-Tate spectrum, $K(E_n)$ its algebraic $K$-theory spectrum, and…

Algebraic Topology · Mathematics 2023-02-28 Daniel G. Davis

We show that instanton bundles of rank $r\le 2n-1$, defined as the cohomology of certain linear monads, on an $n$-dimensional projective variety with cyclic Picard group are semistable in the sense of Mumford-Takemoto. Furthermore, we show…

Algebraic Geometry · Mathematics 2010-05-06 Marcos Jardim , Rosa M. Miró-Roig

We show that the category of N-complexes has a Str\om model structure, meaning the weak equivalences are the chain homotopy equivalences. This generalizes the analogous result for the category of chain complexes (N = 2). The trivial objects…

K-Theory and Homology · Mathematics 2012-07-31 James Gillespie

We study representation stability in the sense of Church, Ellenberg, and Farb \cite{FI-module} through the lens of symmetric function theory and the different symmetric function bases. We show that a sequence, $(F_n)_n$, where $F_n$ is a…

Combinatorics · Mathematics 2025-05-28 Nikita Borisov

The aim of this work is to study homogeneous stable solutions to the thin (or fractional) one-phase free boundary problem. The problem of classifying stable (or minimal) homogeneous solutions in dimensions $n\geq3$ is completely open. In…

Analysis of PDEs · Mathematics 2022-04-21 Xavier Fernández-Real , Xavier Ros-Oton

We show that a projective manifold is stable if and only if the Mabuchi energy is proper on the space of algebraic metrics. We show that stability implies finite automorphism group.

Algebraic Geometry · Mathematics 2013-08-21 Sean Timothy Paul

We define a closed model category containing the $n$-nerves defined by Tamsamani, and admitting internal $Hom$. This allows us to construct the $n+1$-category $nCAT$ by taking the internal $Hom$ for fibrant objects. We prove a generalized…

alg-geom · Mathematics 2008-02-03 Carlos Simpson

For groups of prime order, equivariant stable maps between equivariant representation spheres are investigated using the Borel cohomology Adams spectral sequence. Features of the equivariant stable homotopy category, such as stability and…

Algebraic Topology · Mathematics 2011-10-12 Markus Szymik

We study Maurer-Cartan moduli spaces of dg algebras and associated dg categories and show that, while not quasi-isomorphism invariants, they are invariants of strong homotopy type, a natural notion that has not been studied before. We…

Algebraic Topology · Mathematics 2021-09-30 Joseph Chuang , Julian Holstein , Andrey Lazarev

We prove that group homology of the diffeomorphism group of $\#^g S^n \times S^n$ as a discrete group is independent of $g$ in a range, provided that $n>2$. This answers the high dimensional version of a question posed by Morita about…

Algebraic Topology · Mathematics 2017-09-12 Sam Nariman

Vietoris-Rips and degree Rips complexes are represented as homotopy types by their underlying posets of simplices, and basic homotopy stability theorems are recast in these terms. These homotopy types are viewed as systems (or functors),…

Algebraic Topology · Mathematics 2020-10-28 J. F. Jardine

We generalize and greatly simplify the approach of Lydakis and Dundas-R\"ondigs-{\O}stv{\ae}r to construct an L-stable model structure for small functors from a closed symmetric monoidal model category V to a V-model category M, where L is…

Algebraic Topology · Mathematics 2007-05-23 Georg Biedermann

In this paper, the homotopy groups of Chow variety $C_{p,d}(P^n)$ of effective $p$-cycles of degree $d$ is proved to be stable in the sense that $p$ or $n$ increases. We also obtain a negative answer to a question by Lawson and Michelsohn…

Algebraic Geometry · Mathematics 2008-10-17 Wenchuan Hu