Mathematics 78 History 71 Banach spaces 57 Space and time 54 Women 53 Hilbert space 50 Philosophy 42 Topology of spaces-- Manifold topology-- Metric topology 39 Functional analysis 37 Astrophysics; Descriptive astronomy 36 Topology 36 Social conditions 34 Topological Vector Spaces-- Linear topological spaces 34 Literature 33 History and criticism 32 Physics 32 Lecture Notes in Mathematics 30 Vector spaces 30 Space 29 Feminism 28 Social Sciences 28 Metric spaces 27 Dissertations, Academic (Ph.D) 26 Astronomy & allied sciences 24 Function spaces 24 Social aspects 24 Topological Structures and spaces-- Knot theory-- Sheaf theory 24 Planetary and space science 23 Gender identity 22 Calculus 21