Explicit near-Ramanujan graphs of every degree
Explicit near-Ramanujan graphs of every degree
复制标题
DOI:
10.1145/3357713.3384231
复制
发表时间:
2019-09
期刊:
影响因子:
--
通讯作者:
Sidhanth Mohanty;R. O'Donnell;Pedro Paredes
中科院分区:
文献类型:
--
作者:
Sidhanth Mohanty;R. O'Donnell;Pedro Paredes
For every constant d ≥ 3 and є > 0, we give a deterministic poly(n)-time algorithm that outputs a d-regular graph on Θ(n) vertices that is є-near-Ramanujan; i.e., its eigenvalues are bounded in magnitude by 2√d−1 + є (excluding the single trivial eigenvalue of d).