Support of closed walks and second eigenvalue multiplicity of graphs
Support of closed walks and second eigenvalue multiplicity of graphs
复制标题
图的封闭游走和第二特征值重数的支持
DOI:
10.1145/3406325.3451129
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Srivastava, Nikhil
中科院分区:
文献类型:
--
作者:
McKenzie, Theo;Rasmussen, Peter Michael;Srivastava, Nikhil
We show that the multiplicity of the second normalized adjacency matrix eigenvalue of any connected graph of maximum degree Δ is bounded byO(nΔ7/5/log1/5−o(1)n) for any Δ, and improve this toO(nlog1/2d/log1/4−o(1)n) for simpled-regular graphs whend≥ log1/4n. In fact, the same bounds hold for the number of eigenvalues in any interval of width λ2/logΔ1−o(1)ncontaining the second eigenvalue λ2. The main ingredient in the proof is a polynomial (ink) lower bound on the typical support of a closed random walk of length 2kin any connected graph, which in turn relies on new lower bounds for the entries of the Perron eigenvector of submatrices of the normalized adjacency matrix.
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影响因子:
4.9
作者:
Zilin Jiang;Jonathan Tidor;Yuan Yao;Shengtong Zhang;Yufei Zhao
通讯作者:
Zilin Jiang;Jonathan Tidor;Yuan Yao;Shengtong Zhang;Yufei Zhao
DOI:
10.1109/focs.2011.95
发表时间:
2011
期刊:
2011 IEEE 52nd Annual Symposium on Foundations of Computer Science
影响因子:
--
作者:
B. Barak;P. Raghavendra;David Steurer
通讯作者:
David Steurer
DOI:
--
发表时间:
2010
期刊:
2010 IEEE 25th Annual Conference on Computational Complexity
影响因子:
--
作者:
A. Kolla
通讯作者:
A. Kolla
DOI:
--
发表时间:
2012
期刊:
arXiv.org
影响因子:
--
作者:
R. Lyons;S. Gharan
通讯作者:
S. Gharan
DOI:
10.1007/978-3-642-40328-6_22
发表时间:
2012
期刊:
ArXiv
影响因子:
--
作者:
S. Gharan;L. Trevisan
通讯作者:
L. Trevisan