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math.LO2025
Some results on the -weight of countable Fréchet-Urysohn spaces
Alan Dow
The -weight spectrum for countable regular Fréchet-Urysohn spaces is the set of uncountable cardinals that are equal to the -weight for some such space. We determine this …
math.LO2025
Weight, net weight, and elementary submodels
Alan Dow, István Juhász
In this note we prove several theorems that are related to some results and problems from [6]. We answer two of the main problems that were raised in [6]. First we give a ZFC examp…