Mathematics 6 Number theory 6 Combinatorial analysis 3 Study and teaching (Higher) 3 Geometry {For algebraic geometry, see 14-XX} 2 Methodology 2 Study and teaching 2 Teaching 2 Activity programs 1 Algebraic fields 1 Algebraic geometry -- Curves -- Elliptic curves [See also 11G05, 11G07, 14Kxx] 1 Algebraic geometry -- Curves -- Special curves and curves of low genus 1 Algebraic number theory 1 Analyse combinatoire 1 Anneaux commutatifs 1 Block designs [See also 51E05, 62K10] 1 Coloring of graphs and hypergraphs 1 Combinatorial games 1 Combinatorics {For finite fields, see 11Txx} 1 Commutative rings 1 Conic sections 1 Convex and discrete geometry 1 Convex and discrete geometry -- Research exposition (monographs, survey articles) 1 Corps finis 1 Courbes algébriques 1 Curves, Algebraic 1 Designs and configurations {For applications of design theory, see 94C30} 1 Difference sets (number-theoretic, group-theoretic, etc.) [See also 11B13] 1 Differential equations 1 Diophantine equations 1