Unified Hanani–Tutte Theorem

[摘要] We introduce a common generalization of the strong Hanani–Tutte theorem and the weak Hanani–Tutte theorem: if a graph $G$ has a drawing $D$ in the plane where every pair of independent edges crosses an even number of times, then $G$ has a planar drawing p

[学科分类] 离散数学和组合数学

[关键词] Hanani–Tutte theorem;Planar graph;Rotation system