A topological application of flat morasses

@article{R2007,
abstract = {We define combinatorial structures which we refer to as flat morasses, and use them to construct a Lindelöf space with points $G_δ$ of cardinality $ℵ_ω$, consistent with GCH. The construction reveals, it is hoped, that flat morasses are a tool worth adding to the kit of any user of set theory.},
author = {R. W. Knight},
journal = {Fundamenta Mathematicae},
keywords = {morass; Lindelöf space; countable pseudocharacter},
language = {eng},
number = {1},
pages = {45-66},
title = {A topological application of flat morasses},
url = {http://eudml.org/doc/283049},
volume = {194},
year = {2007},
}

TY - JOUR
AU - R. W. Knight
TI - A topological application of flat morasses
JO - Fundamenta Mathematicae
PY - 2007
VL - 194
IS - 1
SP - 45
EP - 66
AB - We define combinatorial structures which we refer to as flat morasses, and use them to construct a Lindelöf space with points $G_δ$ of cardinality $ℵ_ω$, consistent with GCH. The construction reveals, it is hoped, that flat morasses are a tool worth adding to the kit of any user of set theory.
LA - eng
KW - morass; Lindelöf space; countable pseudocharacter
UR - http://eudml.org/doc/283049
ER -