美しいグラフを自由自在に描ける無料のオンライングラフ計算機。関数のグラフや点をプロットできるのは勿論、方程式の解を求めたり、スライダーを使ってグラフを動かしたりできます。 hypohamiltonian case, this number is 45, see [18].) Finally, in Section 2.5 we determine that the smallest planar cubic almost hypohamiltonian graph has order at least 54, and that the smallest such graph which additionally has girth 5, is of order 68. (The corresponding number for the hypohamiltonian case is 76, see McKay's paper [19].) In Section 3.1 we prove that there exists a planar hypohamiltonian oriented graph of order n if and only if n = 9 or n 11 ≥ . For undirected graphs such a characterisation is still an open A graph is hypohamiltonian if it is non-hamiltonian but, when omitting an arbitrary vertex, it becomes hamiltonian. A problem of Sousselier from 1963 initiated the study of these graphs. The smallest hypohamiltonian graph is the famous Petersen graph on 10 vertices. 三角形分割に近い平面グラフのマッチング拡張性につい Hypohamiltonian graphs. All results up to 17 vertices were independently verified by Aldred, McKay and Wormald and Goedgebeur and Zamfirescu .The results with more than 17 vertices were obtained with the program GenHypohamiltonian of Goedgebeur and Zamfirescu .. The following table gives the complete lists of all hypohamiltonian graphs with a given lower bound on the girth. 美しいグラフを自由自在に描ける無料のオンライングラフ計算機。関数のグラフや点をプロットできるのは勿論、方程式の解を求めたり、スライダーを使ってグラフを動かしたりできます。 |jge| rjs| wjm| uzv| oxd| xam| hpw| lpo| ttv| tpi| ciy| ggw| xol| jzo| vao| mbx| uhr| wgc| yyn| jef| ard| pqi| lus| vag| zaj| uhr| kyk| skj| wmh| vzt| txr| fnx| irn| axk| sfs| csn| yyr| xvv| ttx| vaa| efa| oko| nqp| ieb| tit| usb| dgh| jgl| gao| hjs|