English

Cartesian Differential Comonads and New Models of Cartesian Differential Categories

Category Theory 2023-01-24 v4

Abstract

Cartesian differential categories come equipped with a differential combinator that formalizes the derivative from multi-variable differential calculus, and also provide the categorical semantics of the differential λ\lambda-calculus. An important source of examples of Cartesian differential categories are the coKleisli categories of the comonads of differential categories, where the latter concept provides the categorical semantics of differential linear logic. In this paper, we generalize this construction by introducing Cartesian differential comonads, which are precisely the comonads whose coKleisli categories are Cartesian differential categories, and thus allows for a wider variety of examples of Cartesian differential categories. As such, we construct new examples of Cartesian differential categories from Cartesian differential comonads based on power series, divided power algebras, and Zinbiel algebras.

Keywords

Cite

@article{arxiv.2108.04304,
  title  = {Cartesian Differential Comonads and New Models of Cartesian Differential Categories},
  author = {Sacha Ikonicoff and Jean-Simon Pacaud Lemay},
  journal= {arXiv preprint arXiv:2108.04304},
  year   = {2023}
}

Comments

Accepted and to be published in Cahiers de topologie et g\'eom\'etrie diff\'erentielle cat\'egoriques

R2 v1 2026-06-24T04:58:01.338Z