Mathematics 126 Computer science 71 Discrete mathematics 29 Combinatorial analysis 25 Graph theory 17 Coding theory 13 Data encryption (Computer science) 9 Data processing 9 Number theory 9 Algebra 8 Cryptography 8 Logic, Symbolic and mathematical 8 Algebra, Abstract 7 Electronic data processing 7 Discrete Mathematics 6 General Principles-Mathematics 6 MATHEMATICS / Discrete Mathematics 6 Algorithms 5 Computer science-Mathematics 5 MATHEMATICS / Number Theory 5 Probabilities 5 Combinatorics 4 Computer security 4 MATHEMATICS / Applied 4 MATHEMATICS / Combinatorics 4 Machine theory 4 Mathematical models 4 Proof theory 4 COMPUTERS / Operating Systems / General 3 Combinatorial enumeration problems 3