Algebraic fields Arithmetical algebraic geometry Combinatorics -- Algebraic combinatorics -- Group actions on combinatorial structures Combinatorics -- Graph theory -- Planar graphs; geometric and topological aspect Combinatorics -- Graph theory -- Signed and weighted graphs Combinatorics -- Graph theory -- Trees Dessins d'enfants (Mathematics) Field theory and polynomials -- Computational aspects of field theory and polynomials -- Computational aspects of field theory and polynomials Field theory and polynomials -- General field theory -- Special polynomials Galois theory Group theory and generalizations -- Permutation groups -- Primitive groups Number theory -- Algebraic number theory: global fields -- Galois theory Number theory -- Arithmetic algebraic geometry (Diophantine geometry) -- Dessins d'enfants, Belyĭ theory Polynomials Trees (Graph theory)