History 78 Mathematics 72 Banach spaces 57 Space and time 54 Women 51 Hilbert space 50 Philosophy 43 Topology of spaces-- Manifold topology-- Metric topology 39 Functional analysis 36 History and criticism 36 Physics 36 Social conditions 36 Topology 35 Astrophysics; Descriptive astronomy 34 Topological Vector Spaces-- Linear topological spaces 34 Agronomy 30 Lecture Notes in Mathematics 30 Vector spaces 30 Feminism 29 Space 29 Metric spaces 27 Social aspects 27 Dissertations, Academic (Ph.D) 26 Astronomy & allied sciences 24 Function spaces 24 Political aspects 24 Topological Structures and spaces-- Knot theory-- Sheaf theory 24 Planetary and space science 23 Gender identity 22 Literature 21