Between homeomorphism type and Tukey type
General Topology
2019-12-20 v2
Abstract
Call a compact space pin homogeneous if every two points are pin equivalent, meaning that there exists a compact space , a quotient map , and a homeomorphism such that . We will prove a representation theorem for pin equivalence; transitivity of pin equivalence will be a corollary. Pin homogeneity is strictly weaker than homogeneity and pin equivalence is strictly stronger than Tukey equivalence. Just as with topological homogeneity, no infinite compact -space is pin homogeneous. On the other hand, is pin homogeneous for every compact . And there is a compact pin homogeneous space with points of different -character.
Cite
@article{arxiv.1902.06152,
title = {Between homeomorphism type and Tukey type},
author = {David Milovich},
journal= {arXiv preprint arXiv:1902.06152},
year = {2019}
}
Comments
13 pages