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arXiv 0904.2600math.CO
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加性边缘标记

Additive Edge Labelings

Alicia Dickenstein, Enrique A. Tobis

摘要:

设G=(V,E)是一个图,d是一个正整数.本文研究了如下问题:对于E中的哪些标号f_E:E \to Z_d,存在标号f_V:V \to Z_d使得f_E(i,j)= f_V(i)+ f_V(j)(mod d)?我们还探讨了连接的等价乘法版本复曲面理想。我们推导出一个多项式算法来回答这些问题,并获得所有可能的解决方案。

英文摘要:

Let G=(V,E) be a graph and d a positive integer. We study the following problem: for which labelings f_E: E \to Z_d is there a labeling f_V:V \to Z_d such that f_E(i,j) = f_V(i) + f_V(j) (mod d), for every edge (i,j) in E? We also explore the connections of the equivalent multiplicative version to toric ideals. We derive a polynomial algorithm to answer these questions and to obtain all possible solutions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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