Contents

Journal of Combinatorial Mathematics and Combinatorial Computing

  • Research article

Abelian Ramanujan Graphs

Chen Kejun1,2
1 Department of Mathematics, Suzhou University Suzhou 215006, China
2Department of Mathematics, Yancheng Teachers College, Jiangsu 224002, China
  • Published: 31/05/2001

Abstract

Some special sum graphs and difference graphs, based on abelian groups, are discussed. In addition to Li’s result on character sum estimates, Weil’s character sum estimates are also used to show that these are indeed Ramanujan graphs.

Citation
Chen Kejun. Abelian Ramanujan Graphs[J], Journal of Combinatorial Mathematics and Combinatorial Computing, Volume 037. 239-250. .