Algebraic fieldsArithmetical algebraic geometryCombinatorics -- Algebraic combinatorics -- Group actions on combinatorial structuresCombinatorics -- Graph theory -- Planar graphs; geometric and topological aspectCombinatorics -- Graph theory -- Signed and weighted graphsCombinatorics -- Graph theory -- TreesDessins d'enfants (Mathematics)Field theory and polynomials -- Computational aspects of field theory and polynomials -- Computational aspects of field theory and polynomialsField theory and polynomials -- General field theory -- Special polynomialsGalois theoryGroup theory and generalizations -- Permutation groups -- Primitive groupsMathematicsNumber theory -- Algebraic number theory: global fields -- Galois theoryNumber theory -- Arithmetic algebraic geometry (Diophantine geometry) -- Dessins d'enfants, Belyi theoryNumber theory -- Arithmetic algebraic geometry (Diophantine geometry) -- Dessins d'enfants, Belyĭ theoryPolynomialsTrees (Graph theory)