English

Beyond Initial Algebras and Final Coalgebras

Category Theory 2023-03-06 v1 Logic in Computer Science

Abstract

We provide a construction of the fixed points of functors which may not be inital algebras or final coalgebras. For an endofunctor F, this fixed point construction may be expressed as a pair of adjoint functors between F-coalgebras and F-algebras. We prove a version of the limit colimit coincidence theorem for these generalized fixed points.

Keywords

Cite

@article{arxiv.2303.02065,
  title  = {Beyond Initial Algebras and Final Coalgebras},
  author = {Ezra Schoen and Jade Master and Clemens Kupke},
  journal= {arXiv preprint arXiv:2303.02065},
  year   = {2023}
}

Comments

Extended Abstract

R2 v1 2026-06-28T09:00:07.177Z