Mathematics 110 History 95 Philosophy 74 Literature 61 Banach spaces 57 Physics 54 Space and time 54 Hilbert space 50 Social Sciences 43 Biotechnology 41 Women 41 Business environment 40 Economics 40 Education 40 Management 40 Pest control 40 Topology of spaces-- Manifold topology-- Metric topology 39 Astrophysics; Descriptive astronomy 35 Feminism 35 Functional analysis 35 Topology 35 Biography 34 Topological Vector Spaces-- Linear topological spaces 34 Image processing 33 Quantum theory 32 Religion 32 Calculus 31 History and criticism 31 Social aspects 31 Sociology 31