FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1966292717> ?p ?o ?g. }

• W1966292717 endingPage "199" @default.
• W1966292717 startingPage "163" @default.
• W1966292717 abstract "This expository paper describes a number of theorems dealing with cardinal numbers associated with topoligical spaces. The weight, density character, and cellular number receive chief attention. A few of the theorems cited-e.g., the Hewitt-Pondionery-Marczewski theorem on the density character of a product space, and the Erdös-Tarski theorem asserting that the cellular number, unless uncountable and weakly inaccessible, is achieved — has been known for many years; proofs are included. Other equally exciting results of more recent vintage, such as Arhangel'skii's solution to the Alexandroff problem, the Hajnal-Jokise evaluation of the number of sets in a Hausdorff topology, and Nyiko's solution to the Engelking-Mröwka problem, have perhaps not yet achieved their optimal statement and/or proof, these results are stated here as carefully and completely as time and the present author's ability permit, but the proofs are only sketched, or omitted entirely. The following also are briefly mentioned: Smirnov's theorem w(ßX) = C∗(X); the F.K. Schmidt A.H. Stone-Kruse theorem |C(X)|=|C(X)|ℵ0; the relation ml = m in Stonian spaces; the Noble-Ulmer cluster of theorems on preservation of certain cardinal properties under passage to products; and Mrówka's theorems on embedding the discrete space D(m) as a closed subspace of Nm." @default.
• W1966292717 created "2016-06-24" @default.
• W1966292717 creator A5003826957 @default.
• W1966292717 date "1971-08-01" @default.
• W1966292717 modified "2023-09-27" @default.
• W1966292717 title "A survey of cardinal invariants" @default.
• W1966292717 cites W1214985307 @default.
• W1966292717 cites W134292228 @default.
• W1966292717 cites W1523058355 @default.
• W1966292717 cites W1550271571 @default.
• W1966292717 cites W1563921271 @default.
• W1966292717 cites W1650283423 @default.
• W1966292717 cites W1968386227 @default.
• W1966292717 cites W1970364998 @default.
• W1966292717 cites W1972048829 @default.
• W1966292717 cites W1974656456 @default.
• W1966292717 cites W1978819760 @default.
• W1966292717 cites W1984845411 @default.
• W1966292717 cites W1985344300 @default.
• W1966292717 cites W1991068721 @default.
• W1966292717 cites W2000600180 @default.
• W1966292717 cites W2007918306 @default.
• W1966292717 cites W2016341899 @default.
• W1966292717 cites W2022040382 @default.
• W1966292717 cites W2022100303 @default.
• W1966292717 cites W2026043821 @default.
• W1966292717 cites W2037063203 @default.
• W1966292717 cites W2047572735 @default.
• W1966292717 cites W2059441925 @default.
• W1966292717 cites W2064773955 @default.
• W1966292717 cites W2135783417 @default.
• W1966292717 cites W2154689133 @default.
• W1966292717 cites W2326548359 @default.
• W1966292717 cites W2331307912 @default.
• W1966292717 cites W2334527086 @default.
• W1966292717 cites W2912123549 @default.
• W1966292717 cites W3048125665 @default.
• W1966292717 cites W4232920146 @default.
• W1966292717 cites W4236090472 @default.
• W1966292717 cites W4241188961 @default.
• W1966292717 cites W795440805 @default.
• W1966292717 cites W940071260 @default.
• W1966292717 cites W978294532 @default.
• W1966292717 doi "https://doi.org/10.1016/0016-660x(71)90122-x" @default.
• W1966292717 hasPublicationYear "1971" @default.
• W1966292717 type Work @default.
• W1966292717 sameAs 1966292717 @default.
• W1966292717 citedByCount "33" @default.
• W1966292717 countsByYear W19662927172019 @default.
• W1966292717 countsByYear W19662927172020 @default.
• W1966292717 countsByYear W19662927172022 @default.
• W1966292717 crossrefType "journal-article" @default.
• W1966292717 hasAuthorship W1966292717A5003826957 @default.
• W1966292717 hasConcept C108710211 @default.
• W1966292717 hasConcept C110729354 @default.
• W1966292717 hasConcept C112698675 @default.
• W1966292717 hasConcept C114614502 @default.
• W1966292717 hasConcept C118615104 @default.
• W1966292717 hasConcept C134306372 @default.
• W1966292717 hasConcept C138885662 @default.
• W1966292717 hasConcept C142399903 @default.
• W1966292717 hasConcept C144133560 @default.
• W1966292717 hasConcept C154945302 @default.
• W1966292717 hasConcept C191399826 @default.
• W1966292717 hasConcept C202444582 @default.
• W1966292717 hasConcept C2524010 @default.
• W1966292717 hasConcept C2778572836 @default.
• W1966292717 hasConcept C2780129039 @default.
• W1966292717 hasConcept C2780861071 @default.
• W1966292717 hasConcept C32834561 @default.
• W1966292717 hasConcept C33923547 @default.
• W1966292717 hasConcept C41008148 @default.
• W1966292717 hasConcept C41608201 @default.
• W1966292717 hasConcept C41895202 @default.
• W1966292717 hasConcept C89507440 @default.
• W1966292717 hasConceptScore W1966292717C108710211 @default.
• W1966292717 hasConceptScore W1966292717C110729354 @default.
• W1966292717 hasConceptScore W1966292717C112698675 @default.
• W1966292717 hasConceptScore W1966292717C114614502 @default.
• W1966292717 hasConceptScore W1966292717C118615104 @default.
• W1966292717 hasConceptScore W1966292717C134306372 @default.
• W1966292717 hasConceptScore W1966292717C138885662 @default.
• W1966292717 hasConceptScore W1966292717C142399903 @default.
• W1966292717 hasConceptScore W1966292717C144133560 @default.
• W1966292717 hasConceptScore W1966292717C154945302 @default.
• W1966292717 hasConceptScore W1966292717C191399826 @default.
• W1966292717 hasConceptScore W1966292717C202444582 @default.
• W1966292717 hasConceptScore W1966292717C2524010 @default.
• W1966292717 hasConceptScore W1966292717C2778572836 @default.
• W1966292717 hasConceptScore W1966292717C2780129039 @default.
• W1966292717 hasConceptScore W1966292717C2780861071 @default.
• W1966292717 hasConceptScore W1966292717C32834561 @default.
• W1966292717 hasConceptScore W1966292717C33923547 @default.
• W1966292717 hasConceptScore W1966292717C41008148 @default.
• W1966292717 hasConceptScore W1966292717C41608201 @default.
• W1966292717 hasConceptScore W1966292717C41895202 @default.
• W1966292717 hasConceptScore W1966292717C89507440 @default.
• W1966292717 hasIssue "2" @default.

• next