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zbMath0659.54036MaRDI QIDQ3808860

Věra Trnková

Publication date: 1988

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

retract Cantor discontinuum countable commutative semigroups \(F_{\sigma \delta }\)-subsets \(G_{\delta \sigma }\)-subsets closed under countable coproducts countable, commutative, ordered semigroup finitely productive representations of commutative semigroups as classes of topological spaces

Mathematics Subject Classification ID

Commutative semigroups (20M14) Representation of semigroups; actions of semigroups on sets (20M30) Topological representations of algebraic systems (54H10)

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