"sober space" meaning in English

See sober space in All languages combined, or Wiktionary

Noun

Forms: sober spaces [plural]
Head templates: {{en-noun}} sober space (plural sober spaces)
  1. (topology) A topological space of which every join-irreducible closed subset is the closure of exactly one point of the space. Wikipedia link: sober space Categories (topical): Topology Hypernyms (topological space): Kolmogorov space, topological space Hyponyms (topological space): Hausdorff space Related terms: soberification (english: latter form apparently more common), sobrification (english: latter form apparently more common)
    Sense id: en-sober_space-en-noun-H4cqBfkT Categories (other): English entries with incorrect language header, Topological spaces Topics: mathematics, sciences, topology

Inflected forms

Download JSON data for sober space meaning in English (3.7kB)

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          "ref": "1975, Mathematica Scandinavica, Societates Mathematicae, page 318",
          "text": "For a reader more interested in function spaces than in functors, this concludes the description of content except to add that the classification of coadjoint G’s by sets B bearing a topological topology relativizes to T₀ spaces. For other readers: and trivially to sober spaces.",
          "type": "quotation"
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          "text": "1983, Houston Journal of Mathematics, Volume 9, University of Houston, page 192,\nIn the Hofmann and Lawson paper, it is proved that the topological space Spec(L) is a locally quasicompact sober space […] ."
        },
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          "ref": "2002, P. T. Johnstone, Sketches of an Elephant: A Topos Theory Compendium, volume 2, Oxford University Press, page 492",
          "text": "Thus sober spaces are necessarily T₀.",
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          "ref": "2003, A. Pultr, S. E. Rodabaugh, “Chapter 6: Lattice-Valued Frames, Functor Categories, And Classes of Sober Spaces”, in Stephen Ernest Rodabaugh, Erich Peter Klement, editors, Topological and Algebraic Structures in Fuzzy Sets: A Handbook of Recent Developments in the Mathematics of Fuzzy Sets, Springer, page 155",
          "text": "How rich are sober and L-sober spaces, are there important examples? It is well-known [25] that Hausdorff spaces, and hence compact T₀ (and so finite T₀ spaces), are sober spaces in the traditional setting. Furthermore, the soberification of a space—the spectrum of the topology of a space—is always sober; and if the original space is not Hausdorff, then its soberification is a sober space which is not Hausdorff. So there are many non-Hausdorff sober spaces as well.",
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          "text": "When X is a noetherian sober space the construction of loc. cit. can be extended to an arbitrary lower-semicontinuous function for the constructible topology.",
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        "(topology) A topological space of which every join-irreducible closed subset is the closure of exactly one point of the space."
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          "text": "1983, Houston Journal of Mathematics, Volume 9, University of Houston, page 192,\nIn the Hofmann and Lawson paper, it is proved that the topological space Spec(L) is a locally quasicompact sober space […] ."
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          "ref": "2002, P. T. Johnstone, Sketches of an Elephant: A Topos Theory Compendium, volume 2, Oxford University Press, page 492",
          "text": "Thus sober spaces are necessarily T₀.",
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          "ref": "2003, A. Pultr, S. E. Rodabaugh, “Chapter 6: Lattice-Valued Frames, Functor Categories, And Classes of Sober Spaces”, in Stephen Ernest Rodabaugh, Erich Peter Klement, editors, Topological and Algebraic Structures in Fuzzy Sets: A Handbook of Recent Developments in the Mathematics of Fuzzy Sets, Springer, page 155",
          "text": "How rich are sober and L-sober spaces, are there important examples? It is well-known [25] that Hausdorff spaces, and hence compact T₀ (and so finite T₀ spaces), are sober spaces in the traditional setting. Furthermore, the soberification of a space—the spectrum of the topology of a space—is always sober; and if the original space is not Hausdorff, then its soberification is a sober space which is not Hausdorff. So there are many non-Hausdorff sober spaces as well.",
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This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2024-04-30 from the enwiktionary dump dated 2024-04-21 using wiktextract (210104c and c9440ce). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.

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