Retracts of the closure space of filters in the lattice of all subsets |
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Authors: | Andrzej W. Jankowski |
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Affiliation: | (1) Institute of Mathematics, University of Warsaw, Poland |
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Abstract: | We give an idea of uniform approach to the problem of characterization of absolute extensors for categories of topological spaces [21], closure spaces [15], Boolean algebras [22], and distributive lattices [4]. In this characterization we use the notion of retract of the closure space of filters in the lattice of all subsets. |
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