| 四度图的异构类数的递推律及其数表 |
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| 引用本文： | 伍启期. 四度图的异构类数的递推律及其数表[J]. 佛山科学技术学院学报(自然科学版), 2000, 18(4): 10-14 |
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| 作者姓名： | 伍启期 |
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| 作者单位： | 佛山科学技术学院,数学系,广东,佛山,528000 |
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| 摘 要： | 给出四度图的异构类数的递推定律。以A型中的υ=0的异构类数的数表为基础，利用递推关系，能迅速求出I（1，n),I(2,n)及B型的异构类数。利用本文中P（n,3)数表，能迅速给出C型的数表。
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| 关 键 词： | 四度图 异构类数 A型 B型 C型 递推定律 数表 圈秩 顶点数 化学结构 |
The recursive laws and their tables of the number of isomeric types of the graphs in degree four |
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| WU Qi-qi. The recursive laws and their tables of the number of isomeric types of the graphs in degree four[J]. Journal of Foshan University(Natural Science Edition), 2000, 18(4): 10-14 |
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| Authors: | WU Qi-qi |
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| Abstract: | The recursive laws of the number of isomeric types of the graphs in degree four are obtained, with which and the I(0,n) table(i.e, the table in the case of v=0 of the A Form) we are able to find out quickly the numbers of isomeric types of I(1,n), I(2,n) and the B Form. The numbers of C Form are also quickly obtained with the help of the table of P(n,3). |
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| Keywords: | graphs in degree four number of isomeric types A Form B Form C Form recursion unordered partit |
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