Author information
H. Ebadizadeh:
Department of Mathematics, Ferdowsi University of Mashhad, Mashhad, Iran
ebadizadeh.hojjat@stu.um.ac.ir
F. H. Ghane:
Department of Mathematics, Ferdowsi University of Mashhad, Mashhad, Iran
ghane@math.um.ac.ir
A. Ehsani:
Department of Mathematics, Ferdowsi University of Mashhad, Mashhad, Iran
aza_ehsani@yahoo.com
M. Saleh:
Department of Mathematics, University of Neyshabur, Neyshabur, Iran
saleh@neyshabur.ac.ir
M. Zaj:
Department of Mathematics, Ferdowsi University of Mashhad, Mashhad, Iran
zaj.marzie@yahoo.com
