作者: M. Ajtai
DOI: 10.1007/BF01302963
关键词: Expander graph 、 Mathematics 、 Graph (abstract data type) 、 Combinatorics
摘要: We present an algorithm which inn 3 (logn)3 time constructs a 3-regular expander graph onn vertices. In each step we substitute pair of edges the by new so that total number cycles lengths=⌊clogn⌋ decreases (for some fixed absolute constantc). When reach local minimum in lengths is expander.