Towards improved algorithms for testing bipartiteness and monotonicity.
Alon 和Krivelevich (SIAM J. Discrete Math. 15(2): 211-227 (2002)) 證明了如果一個圖是ε -非二部圖,那麼階數為Ỡ(1/ε) 的隨機導出于圖以很大概率是非二部圖。我們進一步猜想,這個導出子圖以很大概率是Ω(ε)-非二部圖。Gonen 和Ron (RANDOM 2007) 證明了當圖的最大度不超過O (εn )時猜想成立。我們將對更一般的情形給出證明,對於任意d,所有d 正則(或幾乎d 正則)的圖猜想成立。 === 假設猜想成立的情況下,我們證明二分屬性是可以被單側誤差在O(1/ε^c ) 時間內檢驗的,其中c 是一個嚴格小於2 的常...
Other Authors: | Li, Fan. |
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Format: | Others |
Language: | English Chinese |
Published: |
2013
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Subjects: | |
Online Access: | http://library.cuhk.edu.hk/record=b5549331 http://repository.lib.cuhk.edu.hk/en/item/cuhk-328436 |
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