EntityQ1068085· pop 18· linked from 96 articlesclosed graph theoremSign in to savetheoremConnectionscontinuous functionEntitygeneral topologyEntityopen mapping theoremEntityreflexive spaceEntityconvex coneEntitymathematicsEntityInternational Standard Book NumberEntityvector spaceEntityInternet ArchiveEntityOCLC, Inc.EntityHilbert spaceEntitygraph of a functionEntityfunctional analysisEntityQ118398Entitytopological spaceEntityRiemann hypothesisEntitylinear mapEntityTerence TaoEntityNicolas BourbakiEntitycalculus of variationsEntityCategoriesTheorems in functional analysis