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model structure on monoids in a monoidal model category in nLab

Contents

Context

Model category theory

model category, model ∞ \infty -category

Definitions

Morphisms

Universal constructions

Refinements

Producing new model structures

Presentation of (∞,1)(\infty,1)-categories

Model structures

for ∞\infty-groupoids

for ∞-groupoids

for equivariant ∞\infty-groupoids

for rational ∞\infty-groupoids

for rational equivariant ∞\infty-groupoids

for nn-groupoids

for ∞\infty-groups

for ∞\infty-algebras

general ∞\infty-algebras

specific ∞\infty-algebras

for stable/spectrum objects

for (∞,1)(\infty,1)-categories

for stable (∞,1)(\infty,1)-categories

for (∞,1)(\infty,1)-operads

for (n,r)(n,r)-categories

for (∞,1)(\infty,1)-sheaves / ∞\infty-stacks

Monoidal categories

monoidal categories

With braiding

With duals for objects

With duals for morphisms

With traces

Closed structure

Special sorts of products

Semisimplicity

Morphisms

Internal monoids

Examples

Theorems

In higher category theory

Higher algebra

higher algebra

universal algebra

Algebraic theories

Algebras and modules

Higher algebras

Model category presentations

Geometry on formal duals of algebras

Theorems

Contents

Idea

For CC a monoidal model category there is under mild conditions a natural model category structure on its category of monoids.

Definition

For CC a monoidal category with all colimits, its category of monoids comes equipped (as discussed there) with a free functor/forgetful functor adjunction

(F⊣U):Mon(C)→U←FC. (F \dashv U) : Mon(C) \stackrel{\overset{F}{\leftarrow}}{\underset{U}{\to}} C \,.

Typically one uses on Mon(C)Mon(C) the transferred model structure along this adjunction, if it exists.

This is part of (SchwedeShipley, theorem 4.1).

Properties

Homotopy pushouts

Suppose the transferred model structure exists on Mon(C)Mon(C). By the discussion of free monoids at category of monoids we have that then pushouts of the form

F(A) →F(f) F(B) ↓ ↓ X → P \array{ F(A) &\stackrel{F(f)}{\to}& F(B) \\ \downarrow && \downarrow \\ X &\to& P }

exist in Mon(C)Mon(C), for all f:A→Bf : A \to B in CC

This is SchwedeShipley, lemma 6.2.

A ∞A_\infty-Algebras

Under mild conditions on CC the model structure on monoids in CC is Quillen equivalent to that of A-infinity algebras in CC. See model structure on algebras over an operad for details.

References

Last revised on May 29, 2022 at 19:22:32. See the history of this page for a list of all contributions to it.