Pontryagin surface

examples of topological spaces whose products have lower than expected topological dimension
rdfs:label
"Pontryagin surface"@en
skos:altLabel "поверхность Болтянского"@ru
schema:description
"examples of topological spaces whose products have lower than expected topological dimension"@en
schema:dateModified "2026-08-27T13:24:04+00:00"^^xsd:dateTime
schema:version 2537074491
wikibase:identifiers 2
wikibase:sitelinks 1
wikibase:statements 6
p:P138 wd:statement/Q4366381-3f2bb142-41a4-d471-680e-ba5bf196edf5
p:P2671 wd:statement/Q4366381-A9D4F231-EDEC-41EC-A13A-1AA9F36DDA06
p:P279 wd:statement/Q4366381-80b7ec63-4e9c-6d5b-06ea-210a402d1845
p:P31 wd:statement/Q4366381-f81e88d5-4fc3-f65e-3893-0d90dcb709ee
p:P61 wd:statement/Q4366381-6b1b5068-4ae6-f56d-d451-c4bbe60c2e0c
p:P7554 wd:statement/Q4366381-6b275d88-409d-048e-6e4a-a0dc1db08de2
p:direct-normalized/P2671 <http://g.co/kg/g/121914jm>
wdt:P138 Lev Pontryagin
wdt:P2671 "/g/121914jm"
wdt:P279 mathematical object
wdt:P31 mathematical concept
wdt:P61 Lev Pontryagin
wdt:P7554 "Pontryagin_surface"
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