Connectedness of inverse limits with set-valued functions

Authors

  • M. Marsh California State University

Keywords:

connected, inverse limits with set-valued functions

Abstract

We establish general results for determining connectedness of inverse limits on continua with set-valued bonding functions. These results generalize all theorems in the literature where connectedness of the inverse limit can be established by checking easily observable properties of the bonding functions. For inverse limits on $[0,1]$, we note several useful special cases of our main theorem. The results provide answers to two questions of W. T. Ingram. We give a number of examples to illustrate the utility of the results.

References

W.T. Ingram, Inverse limits with upper semi-continuous bonding functions: Problems and some partial solutions, Topology Proc. 36 (2010), 353-373.

W.T. Ingram, An introduction to inverse limits with set-valued functions, Springer Briefs in Mathematics, New York: Springer, 2012.

W.T. Ingram and William S. Mahavier, Inverse limits of upper semi-continuous set-valued functions, Houston J. Math. 32 (2006), #1, 119-130.

W.T. Ingram and M.M. Marsh, Chainability of inverse limits on $[0,1]$ with interval-valued functions, Topology Proc. 56 (2020), 305-320.

M.M. Marsh, Some structure theorems for inverse limits with set-valued functions, Topology Proc. 42 (2013), 237-258.

M.M. Marsh, Tree-like inverse limits on $[0,1]$ with interval-valued functions, Topology Proc. 48 (2016), 215-232,

M.M. Marsh, Connectedness of inverse limits with functions $f_i$ where either $f_i$ or $f_i^{-1}$ is a union of continuum-valued functions, Topology and Its Appl. 264 (2019), 473-488.

V. Nall, Inverse limits with set valued functions, Houston J. Math. 37 (2011), #4, 1323-1332.

V. Nall, Connected inverse limits with a set valued function, Topology Proc. 40 (2012), 167-177.

Published

2022-12-05

How to Cite

Marsh, M. (2022). Connectedness of inverse limits with set-valued functions. Topology Proceedings, 63, 5–21. Retrieved from https://topology.journals.yorku.ca/index.php/tp/article/view/163

Issue

Section

Uncategorized