An Asymptotic Isoperimetric Inequality
An Asymptotic Isoperimetric Inequality
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渐近等周不等式
DOI:
10.1007/s000390050062
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发表时间:
1998
期刊:
影响因子:
--
通讯作者:
J. Spencer
中科院分区:
文献类型:
--
作者:
N. Alon;R. Boppana;J. Spencer
Abstract. For a finite metric space V with a metric
$ \rho $, let V n be the metric space in which the distance between (a1, . . ., an) and (b1, . . ., bn) is the sum
$ \sum^{n}_{i = 1} \rho (a_i, b_i) $. We obtain an asymptotic formula for the logarithm of the maximum possible number of points in V n of distance at least d from a set of half the points of V n, when n tends to infinity and d satisfies
$ d \gg \sqrt {n} $.