Calculus 16 Functions of complex variables-- Analysis-- Mathematics 11 Graph theory-- Mathematics 8 Mathematics 7 Physics 7 Abstract algebra-- Mathematics 5 Analysis-- Mathematics 5 Genetics 5 Microbiology 5 Molecular biology 5 Number theory-- Algebra-- Mathematics 5 Biophysics 4 Coding Theory-- Galois Theory 4 Partial differential Equations 4 Pharmacology and Toxicology 4 Probability Theory 4 Algebra 3 Biochemistry 3 Bioinformatics 3 Complex Analysis 3 Computer science 3 Data structures 3 Engineering 3 Functional analysis-- Mathematics 3 Graph theory 3 Helminthology 3 MOLECULAR BIOLOGY 3 ORGANIC REACTION MECHANISMS 3 ORGANIC SYNTHESIS-- SPECIAL TECHNIQUES 3 Plant breeding 3