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局部有限无穷n-连通图1-因子的下界
引用本文:郑茂林. 局部有限无穷n-连通图1-因子的下界[J]. 新疆大学学报(理工版), 1987, 0(3)
作者姓名:郑茂林
摘    要:Bry[1]证明;一个局部有限、有1-因子的无穷n-连通图至少有(n-1)1个1-因子。并且指出当n=2,此下界是严格的。本文证明;当n≥3时,任意一个局部有限的、有1-因子的、无穷n-连通图至少有n!个1-因子,而且这个下界是最好的。

关 键 词:局部有限  无穷n-连通图  1-因子  下界

LOWER BOUND ON THE NUMBER OF 1-FACTORS OF LOCALLFINITE INFINITE n-CONNECTED GRAPHS
Zheng Maolin. LOWER BOUND ON THE NUMBER OF 1-FACTORS OF LOCALLFINITE INFINITE n-CONNECTED GRAPHS[J]. Journal of Xinjiang University(Science & Engineering), 1987, 0(3)
Authors:Zheng Maolin
Affiliation:Zheng Maolin
Abstract:Bry [1] proved that a locally finite infinite n-connected factorizable graph has atleast (n-1)! 1-factors, and showed that for n=2 this lower bound is sharp. Weprove that for n=3 any locally finite infinite n-connected factorizable graph has atleast n? 1-factors (which is a sharp lower bound.)
Keywords:locally finite   infinite n-connected graphs  l-factor  Iower bound
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