$Y_4$拉伸因子的改进界
Improved Bounds on the Stretch Factor of $Y_4$
摘要:
我们建立了一个上限为4.94的拉伸因子的姚图$Y_4^\infty$中定义的$L_\infty$ -度量,提高了以前已知的最好的上限为6.31。我们还建立了一个上限为54.62的拉伸因子的姚图$Y_4$定义在欧几里德度量,改善了以前已知的最好的上限662.16。
英文摘要:
We establish an upper bound of 4.94 on the stretch factor of the Yao graph $Y_4^\infty$ defined in the $L_\infty$-metric, improving upon the best previously known upper bound of 6.31. We also establish an upper bound of 54.62 on the stretch factor of the Yao graph $Y_4$ defined in the Euclidean metric, improving upon the best previously known upper bound of 662.16.
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