Iranian Mathematical Society (IMS) Bulletin of the Iranian Mathematical Society 1017-060X 36 No. 2 2011 01 03 An Opertional Method for The Numerical Solution of Two Dimensional Linear Fredholm Integral Equations With an Error Estimation119 132 en M. Y. Rahimi S. Shahmorad F. Talati University of Tabriz A. Tari Shahed University 2011 01 03 Two dimensional linear Fredholm integral equations operational Tau method