EntityQ1635267· pop 9· linked from 27 articlesconeSign in to savetopological constructionConnectionsconeEntitydiskEntityballEntitytriangleEntityInternational Standard Book NumberEntitycircleEntitytopologyEntitypolygonEntitypointEntitycylinderEntityintervalEntitycontinuous functionEntityEuclidean spaceEntityunionEntitytopological spaceEntitynumber lineEntityalgebraic topologyEntityhomeomorphismEntitycompact spaceEntitycategoryEntityCategoriesAlgebraic topologyTopology