Results 1 to 10 of about 3,006 (27)

On the Left Properness of the Model Category of Permutative Categories

open access: yesAxioms, 2023
In this paper, we introduce a notion of free cofibrations of permutative categories. We show that each cofibration of permutative categories is a retract of a free cofibration.
Amit Sharma
doaj   +1 more source

A uniqueness theorem for stable homotopy theory [PDF]

open access: yes, 1999
In this paper we study the global structure of the stable homotopy theory of spectra. We establish criteria for when the homotopy theory associated to a given stable model category agrees with the classical stable homotopy theory of spectra.
Schwede, Stefan, Shipley, Brooke
core   +3 more sources

Morita homotopy theory for $(\infty,1)$-categories and $\infty$-operads [PDF]

open access: yes, 2019
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 $\infty$-operads.
Caviglia, Giovanni   +1 more
core   +2 more sources

Simplicial presheaves of coalgebras [PDF]

open access: yes, 2011
The category of simplicial R-coalgebras over a presheaf of commutative unital rings on a small Grothendieck site is endowed with a left proper, simplicial, cofibrantly generated model category structure where the weak equivalences are the local weak ...
Brown   +11 more
core   +1 more source

Rigidity in Equivariant Stable Homotopy Theory [PDF]

open access: yes, 2014
For any finite group G, we show that the 2-local G-equivariant stable homotopy category, indexed on a complete G-universe, has a unique equivariant model in the sense of Quillen model categories.
Patchkoria, Irakli
core   +3 more sources

Axiomatic homotopy theory for operads [PDF]

open access: yes, 2002
We give sufficient conditions for the existence of a model structure on operads in an arbitrary symmetric monoidal model category. General invariance properties for homotopy algebras over operads are deduced.Comment: 29 pages, revised for ...
Berger, Clemens, Moerdijk, Ieke
core   +5 more sources

Bounded homotopy theory and the $K$-theory of weighted complexes

open access: yes, 2011
Given a bounding class $B$, we construct a bounded refinement $BK(-)$ of Quillen's $K$-theory functor from rings to spaces. $BK(-)$ is a functor from weighted rings to spaces, and is equipped with a comparison map $BK \to K$ induced by "forgetting ...
Fowler, J., Ogle, C.
core   +1 more source

A model structure on the category of small categories for coverings [PDF]

open access: yes, 2012
We define a new model structure on the category of small categories, which is intimately related to the notion of coverings and fundamental groups of small categories.
Tanaka, Kohei
core   +2 more sources

The homotopy fixed point spectra of profinite Galois extensions

open access: yes, 2009
Let E be a k-local profinite G-Galois extension of an E_infty-ring spectrum A (in the sense of Rognes). We show that E may be regarded as producing a discrete G-spectrum.
Behrens, Mark, Davis, Daniel G.
core   +4 more sources

The univalence axiom for elegant Reedy presheaves [PDF]

open access: yes, 2015
We show that Voevodsky's univalence axiom for intensional type theory is valid in categories of simplicial presheaves on elegant Reedy categories. In addition to diagrams on inverse categories, as considered in previous work of the author, this includes ...
Shulman, Michael
core   +1 more source

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