Rational Associahedra and Noncrossing Partitions

[摘要] Each positive rational number $x>0$ can be written uniquely as $x=a/(b-a)$ for coprime positive integers $00$ a simplicial complex $\maths

[学科分类] 离散数学和组合数学

[关键词] Catalan number;lattice path;associahedron;noncrossing partition