Uniqueness of two analytic functions sharing four values in an angular domain
Volume 99 / 2010
Annales Polonici Mathematici 99 (2010), 55-65
MSC: 30D30, 30D35.
DOI: 10.4064/ap99-1-5
Abstract
We deal with the uniqueness problem for analytic functions sharing four distinct values in an angular domain and obtain some theorems which improve the result given by Cao and Yi [J. Math. Anal. Appl. 358 (2009)].