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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…