Mathematics 26 Graph theory 19 Combinatorial analysis 9 Computer science 6 Probabilities 5 Algebra 4 Graphs 4 Number theory 4 Electronic data processing 3 Graph coloring 3 Logic, Symbolic and mathematical 3 Algorithms 2 Broken symmetry (Physics) 2 Combinatorics 2 Data processing 2 Digital techniques 2 Discrete mathematics 2 Distributed processing 2 Form perception 2 Image analysis 2 Image processing 2 Induction (Mathematics) 2 Logic-- Set Theory-- Number Theory-- Automata Theory 2 Mathematical models 2 Proof theory 2 Shapes 2 Three-dimensional imaging 2 Abstract algebra 1 Algebra, Abstract-Outlines, Syllabi,etc 1 Algebraic systems 1