English

On the notion of geometric realization

Category Theory 2013-05-27 v4 Algebraic Topology

Abstract

We explain why geometric realization commutes with Cartesian products and why the geometric realization of a simplicial set (resp. cyclic set) is equipped with an action of the group of orientation preserving homeomorphisms of the segment [0,1] (resp. the circle). Our approach is very similar to that of A. Besser and D. Grayson.

Cite

@article{arxiv.math/0304064,
  title  = {On the notion of geometric realization},
  author = {Vladimir Drinfeld},
  journal= {arXiv preprint arXiv:math/0304064},
  year   = {2013}
}

Comments

Corrected a mistake. (The mistake is described in the "Warning" on p.9.)

R2 v1 2026-07-22T16:53:15.128Z