Dissertations, Academic (Ph.D) 2.197 Quantum theory 551 English Literary Theory; English Literature 300 Mathematics 293 Criticism and interpretation 257 Feminist theory 254 Thesis (Ph.D)-Chemistry 233 Number theory-- Algebra-- Mathematics 229 Philosophy 228 Knowledge, Theory of 212 Economics 205 History 183 Literature 183 PhD Theses 182 Number theory 181 Graph theory 169 Thesis (Ph.D)-Malayalam literature 168 Group theory 167 Dissertations, Academic(Ph.D) 165 Thesis (Ph.D)-Physics 162 Graph theory-- Mathematics 158 Thesis (Ph.D)-English literature 156 Kerala 153 Physics 153 History and criticism 140 Thesis 140 Social Sciences 139 Thesis (Ph.D)-Hindi literature 137 Thesis (Ph.D)-Education 130 Dissertations, Academic (Ph.D.) 126