English

Level {\epsilon}

Category Theory 2019-09-30 v1

Abstract

Lawvere has observed that certain 'gros' toposes in algebraic geometry suggest the existence of an 'infinitesimal level', closely related to finite-dimensional local algebras. Motivated by this observation we propose an elementary definition of level {\epsilon} associated to a local geometric morphism, establish some relevant basic properties suggested by geometric intuition, and give concrete descriptions of the level {\epsilon} determined by several pre-cohesive geometric morphisms.

Cite

@article{arxiv.1909.12757,
  title  = {Level {\epsilon}},
  author = {Francisco Marmolejo and Matías Menni},
  journal= {arXiv preprint arXiv:1909.12757},
  year   = {2019}
}

Comments

28 pages

R2 v1 2026-06-23T11:28:19.472Z