Polytopes Combinatorial geometry Combinatorics {For finite fields, see 11Txx} -- Algebraic combinatorics -- Combinatorial aspects of simplicial complexes Combinatorics {For finite fields, see 11Txx} -- Graph theory {For applications of graphs, see 68R10, 81Q30, 81T15, 82B20, 82C20, 90C35, 92E10, 94C15} -- Graph algorithms [See also 68R10, 68W05] Combinatorics {For finite fields, see 11Txx} -- Graph theory {For applications of graphs, see 68R10, 81Q30, 81T15, 82B20, 82C20, 90C35, 92E10, 94C15} -- Planar graphs; geometric and topological aspect Convex and discrete geometry -- General convexity -- Helly-type theorems and geometric transversal theory Convex and discrete geometry -- Polytopes and polyhedra -- $n$-dimensional polytopes Convex and discrete geometry -- Polytopes and polyhedra -- Symmetry properties of polytopes Convex and discrete geometry -- Polytopes and polyhedra -- Three-dimensional polytopes Convex polytopes Geometry {For algebraic geometry, see 14-XX} -- Real and complex geometry -- Polyhedra and polytopes; regular figures, division of spaces [See also 51F15] Group theory and generalizations -- Abstract finite groups -- Simple groups: alternating groups and groups of Lie type [See also 20Gxx] Manifolds and cell complexes {For complex manifolds, see 32Qxx} -- Low-dimensional topology -- Group actions in low dimensions $n$-dimensional polytopes Abstract finite groups Algebraic Algebraic combinatorics Combinatorial aspects of simplicial complexes Combinatorics {For finite fields, see 11Txx} Complexes Convex and discrete geometry General convexity Geometry Geometry {For algebraic geometry, see 14-XX} Géométrie combinatoire Graph algorithms [See also 68R10, 68W05] Graph theory {For applications of graphs, see 68R10, 81Q30, 81T15, 82B20, 82C20, 90C35, 92E10, 94C15} Group actions in low dimensions Group theory and generalizations Helly-type theorems and geometric transversal theory