EntityQ1554293· pop 9· linked from 253 articlesSeifert surfaceSign in to savesurface whose boundary is a knot or a linkConnectionsknot theoryEntitytorus knotEntityknot invariantEntityprime knotEntityGermanyCountrymathematicsEntityInternational Standard Book NumberEntityalgorithmEntitymathematicianEntitydigital object identifierEntitytheoremEntitythree-dimensional spaceEntityknotEntitysurfaceEntityQ180686EntitydiskEntityMöbius stripEntityEuclidean spaceEntitybibcodeEntityQ118398EntityCategoriesGeometric topologyKnot theorySurfaces