Hilbert's fourth problem

one of twenty-three, asking to construct all metric spaces where lines resemble those on a sphere
rdfs:label
"Hilbert's fourth problem"@en
skos:altLabel
"Viertes Hilbertsches Problem"@de
schema:description
"one of twenty-three, asking to construct all metric spaces where lines resemble those on a sphere"@en
schema:dateModified "2025-10-04T17:19:13+00:00"^^xsd:dateTime
schema:version 2412632175
wikibase:identifiers 3
wikibase:sitelinks 8
wikibase:statements 6
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p:P227 wd:statement/Q4515035-7eb36214-4ac5-0c88-3cb0-a1a6a676057d
p:P31 wd:statement/Q4515035-547FC71E-630F-4C57-BD46-42984D040DFE
p:P361 wd:statement/Q4515035-dd1e1161-4298-66ce-7c1f-73bd007a4a2f
p:P6366 wd:statement/Q4515035-8D2FF320-6BA4-4F49-B38C-AC6D36E268FE
p:P646 wd:statement/Q4515035-B5F0F9EF-E7A3-423A-A042-AC1BDB353833
p:direct-normalized/P227 <https://d-nb.info/gnd/4159864-7>
p:direct-normalized/P6366 <https://makg.org/entity/2779509164>
wdt:P138 David Hilbert
wdt:P227 "4159864-7"
wdt:P31 mathematical problem
wdt:P361 Hilbert's problems
wdt:P6366 "2779509164"
wdt:P646 "/m/05cl4r"
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