| Title:
|
Higher theories and monads (English) |
| Author:
|
Henry, Simon |
| Author:
|
Meadows, Nicholas J. |
| Language:
|
English |
| Journal:
|
Higher Structures |
| ISSN:
|
2209-0606 |
| Volume:
|
9 |
| Issue:
|
1 |
| Year:
|
2025 |
| Pages:
|
227-268 |
| Summary lang:
|
English |
| . |
| Category:
|
math |
| . |
| Summary:
|
We extend Bourke and Garner's idempotent adjunction between monads and pretheories to the framework of $\infty$-categories and we use this to prove many classical results about monads in the $\infty$-categorical framework. Amongst other things, we show that the category of algebras for an accessible monad on a locally presentable $\infty$-category $\mathcal{E}$ is again locally presentable, and that a diagram of accessible monads on a locally presentable $\infty$-category admits a colimit. Our results also provide a new and simpler way to construct and describe monads in terms of theories. (English) |
| Keyword:
|
Monads |
| Keyword:
|
Theories |
| Keyword:
|
$\infty$-categories |
| Keyword:
|
Kleisli categories |
| MSC:
|
18C10 |
| MSC:
|
18C15 |
| MSC:
|
18N60 |
| MSC:
|
18N70 |
| idZBL:
|
Zbl 08141786 |
| idMR:
|
MR4918788 |
| DOI:
|
10.21136/HS.2025.05 |
| . |
| Date available:
|
2026-03-13T14:18:52Z |
| Last updated:
|
2026-03-13 |
| Stable URL:
|
http://hdl.handle.net/10338.dmlcz/153486 |
| . |
| Reference:
|
[1] Baez, J., Dolan, J.: Higher dimensional algebra and topological quantum field theory.Journal of Mathematical Physics 36 (1995), 2029-2048 10.1063/1.531236 |
| Reference:
|
[2] Berger, C., Mellies, P.-A., Weber, M.: Monads with arities and their associated theories.Journal of Pure and Applied Algebra 216 (2021), 2029-2048 MR 2925893, 10.1016/j.jpaa.2012.02.039 |
| Reference:
|
[3] Bird, G. J.: Limits in 2-categories of locally presentable categories: PhD thesis.University of Sydney. Circulated by the Sydney Category theory seminar, 1984 |
| Reference:
|
[4] Blackwell, R., Kelly, G. M., Power, A. J.: Two-dimensional monad theory.Journal of Pure and Applied Algebra 59 (1989), 1-41 10.1016/0022-4049(89)90160-6 |
| Reference:
|
[5] Blanc, D., Meadows, N. J.: Andre-quillen cohomology and the k-invariants of simplicial categories.Available at https://arxiv.org/abs/2212.01885 MR 4881652 |
| Reference:
|
[6] Bourke, J., Garner, R.: Monads and theories.Advances in Mathematics 351 (2019), 1024-1071 MR 3956765, 10.1016/j.aim.2019.05.016 |
| Reference:
|
[7] Chu, H., Haugseng, R.: Homotopy-coherent algebra via segal conditions.Advances in Mathematics 385 (2021) MR 4256131 |
| Reference:
|
[8] Cisinksi, D.-C.: Higher categories and homotopical algebra.Cambridge studies in advanced mathematics, Cambridge University Press, Cambridge, 2019 MR 3931682 |
| Reference:
|
[9] Dwyer, W. G., Henn, H. W.: Homotopy-theoretic methods in group cohomology.Advanced courses in mathematics CRM barcelona, Springer, Barcelona, 2001 MR 1926776 |
| Reference:
|
[10] Gepner, D., Haugseng, R., Nikolaus, T.: Lax colimits and free fibrations in $\infty$-categories.Documenta Mathematica 22 (2017), 1225-1266 MR 3690268, 10.4171/dm/593 |
| Reference:
|
[11] Glasman, S.: A spectrum-level Hodge filtration on topological hochschild homology.Selecta Mathematica 22 (2016), 1583-1612 MR 3518559, 10.1007/s00029-016-0228-z |
| Reference:
|
[12] Haugseng, R.: On lax transformations, adjunctions, and monads in $(\infty, 2)$-categories.Higher Structures 5 (2021) MR 4367222, 10.21136/HS.2021.07 |
| Reference:
|
[13] Hebestreit, F., Linskens, S., Nuiten, J.: Orthofibrations and monoidal adjunctions.Available at https://arxiv.org/abs/2011.11042 |
| Reference:
|
[14] Kositsyn, R.: Completeness for monads and theories.Available at https://arxiv.org/abs/2104.00367 |
| Reference:
|
[15] Linton, F. E. J.: Some aspects of equational categories.Proceedings of the conference on categorical algebra, pp 84-94, 1966 |
| Reference:
|
[16] Lurie, J.: Higher topos theory.Annals of mathematics studies, Princeton University Press, Princeton and Oxford, 2009 MR 2522659 |
| Reference:
|
[17] Lurie, J.: Higher algebra (version: September 2017).Online book https://www.math.ias.edu/~lurie/papers/HA.pdf, 2017 |
| Reference:
|
[18] Macdonald, J. L., Stone, A.: The tower and regular decomposition.Cahiers de Topologie et Géométrie Différentielle Catégoriques 23 (1982), 197-213 |
| Reference:
|
[19] Mazel-Gee, A.: Quillen adjunctions induce adjunctions of quasicategories.New York J. Math. 22 (2016), 57-93 MR 3484677 |
| Reference:
|
[20] Riehl, E., Verity, D.: Homotopy coherent adjunctions and the formal theory of monads.Advances in Mathematics 286 (2016), 802-888 MR 3415698, 10.1016/j.aim.2015.09.011 |
| . |