English

A numerical scale for non locally connected planar continua

General Topology 2016-03-11 v1

Abstract

We introduce a numerical scale to quantify to which extent a planar continuum is not locally connected. For a locally connected continuum, the numerical scale is zero; for a continuum like the topologist's sine curve, the scale is one; for an indecomposable continuum, it is infinite. Among others, we shall pose a new problem that may be of some interest: can we estimate the scale from above for the Mandelbrot set M\mathcal{M} ?

Cite

@article{arxiv.1411.6776,
  title  = {A numerical scale for non locally connected planar continua},
  author = {Timo Jolivet and Benoît Loridant and Jun Luo},
  journal= {arXiv preprint arXiv:1411.6776},
  year   = {2016}
}

Comments

21 pages

R2 v1 2026-06-22T07:11:12.300Z