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math.LO2012
Topologically invariant σ-ideals on Euclidean spaces
Taras Banakh, Michał Morayne, Robert Rałowski +1
We study and classify topologically invariant sigma-ideals with an analytic base on Euclidean spaces and evaluate the cardinal characteristics of such ideals.
math.LO2011★ 3 cited
The Bergman-Shelah Preorder on Transformation Semigroups
Z. Mesyan, J. D. Mitchell, M. Morayne +1
Let $\nat^\nat$ be the semigroup of all mappings on the natural numbers $\nat$, and let and be subsets of $\nat^\nat$. We write if there exists a countabl…