Author/Authors :
FATHALIKHANI، KH نويسنده Department of Pure Mathematics, Faculty of Mathematical Sciences, University of Kashan, Kashan 897317?51167, Iran , , KOOREPAZAN-MOFTAKHAR، F نويسنده Department of Pure Mathematics, Faculty of Mathematical Sciences, University of Kashan, Kashan 897317?51167, Iran , , Ashrafi، A. R. نويسنده , , GHORBANI، M نويسنده Department of Mathematics, Faculty of Science, Shahid Rajaee Teacher Training University, Tehran 16785?136, Iran , , ALIKHANI، S نويسنده Department of Mathematics, Yazd University, Yazd 89195?741, Iran , , IRANMANESH ، M. A نويسنده , , IRANMANESH، A نويسنده Department of Mathematics, Tarbiat Modares University, P. O. Box 14115?137, Tehran, Iran ,
