Map coloring, polyhedra, and the four-color problem

類似資料

• Every planar map is four colorable
  著者:: Appel, Kenneth I, 等
  出版事項: (1989)
• Map color theorem
  著者:: Ringel, Gerhard
  出版事項: (1974)
• The four-colour problem
  著者:: Ore, Oystein
  出版事項: (1967)
• The four-colour problem: assaults and conquest
  著者:: Saaty, Thomas L, 等
  出版事項: (1977)
• Problems in combinatorics and graph theory
  著者:: Tomescu, Ioan
  出版事項: (1985)