About: Focal surface

An Entity of Type: Thing, from Named Graph: http://dbpedia.org, within Data Space: dbpedia.org

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Property	Value
dbo:thumbnail	wiki-commons:Special:FilePath/Brennflaeche-hp-def.svg?width=300
dbo:wikiPageWikiLink	dbr:Ridge_(differential_geometry) dbr:Tangent dbr:Principal_curvature dbr:Sphere dbr:Torus dbr:Gaussian_curvature dbr:Dupin_cyclide dbr:Evolute dbr:Multiplicative_inverse dbr:Focal_conics dbr:Umbilical_point dbr:Surface_(mathematics) dbr:Osculating_curve dbr:Focus_(optics) dbr:Channel_surface dbc:Surfaces dbr:Surface_of_revolution dbr:Confocal_quadrics dbr:Curvature_line dbr:Cuspidal_edge dbr:Surface_normal dbr:Curvature_sphere dbr:File:Elliptical_umbilic_focal_surface.png dbr:File:Hyperbolic_umbilic_focal_surface.png dbr:File:Brennflaeche-hp-def.svg dbr:File:Focal_surface.png
dbp:wikiPageUsesTemplate	dbt:Citation dbt:Reflist
dct:subject	dbc:Surfaces
gold:hypernym	dbr:Spheres
rdfs:label	Focal surface (en) Brennfläche (Geometrie) (de)
owl:sameAs	yago-res:Focal surface freebase:Focal surface wikidata:Focal surface dbpedia-de:Focal surface dbpedia-global:Focal surface
prov:wasDerivedFrom	wikipedia-en:Focal_surface?oldid=1270551096&ns=0
foaf:depiction	wiki-commons:Special:FilePath/Elliptical_umbilic_focal_surface.png wiki-commons:Special:FilePath/Hyperbolic_umbilic_focal_surface.png wiki-commons:Special:FilePath/Brennflaeche-hp-def.svg wiki-commons:Special:FilePath/Focal_surface.png
foaf:isPrimaryTopicOf	wikipedia-en:Focal_surface
is dbo:wikiPageWikiLink of	dbr:Ridge_(differential_geometry) dbr:Sphere dbr:BKL_singularity dbr:Sergey_Degayev dbr:Catastrophe_theory dbr:Dupin_cyclide dbr:Focal_conics dbr:Umbilical_point
is foaf:primaryTopic of	wikipedia-en:Focal_surface