Classifying homogeneous cellular ordinal balleans up to coarse equivalence

Taras Banakh, Igor Protasov, Dusan Repovs +1

For every ballean $X$ we introduce two cardinal characteristics $co{v}^{♭}(X)$ and $co{v}^{♯}(X)$ describing the capacity of balls in $X$. We observe that these cardinal character…