Wieslaw A. Dudek (Wroclaw University of Science and Technology, Wroclaw, Poland)                  e-mail: wieslaw.dudek@pwr.edu.pl

V.A. Shcherbacov (Academy of Sciences of Moldova, Chisinau, Moldova)                  e-mail: scerb@math.md
P. Vojtĕchovsky (University of Denver, Denver, USA)                                                   e-mail: petr@math.du.edu

C.S. Anabanti (University of Nigeria, Nsukka, Nigeria)
A. Badawi (American University of Sharjan, Sharjah, United Arab Emirates)
G.Y. Chen (Southwest University, Chongqing, China)
S. Davidov (Yerevan State University, Yerevan, Armenia)
A. Drapal (Charles University, Praha, Czech Republic)
T. Foguel (Adelphi University in Garden City, New Yourk, USA)
T. Kepka (Charles University, Praha, Czech Republic)
H. Kiechle (University of Hamburg, Hamburg, Germany)
H.S. Kim (Hanyang University, Seoul, Korea)
M.K. Kinyon (University of Denver, Denver, USA)
A. Krapez (Serbian Acedemy of Sciences, Belgrade, Serbia)
D. Krotov (Sobolev Institute of of Mathematics, Novosibirsk, Russia)
S. Markovski (Ss Cyril and Methodius University, Skopje, North Makedonia)
Q. Mushtaq (Quaid-i-Azam University, Islamabad, Pakistan)
J.D. Phillips (Northern Michigan University, USA)
V.N. Potapov (Sobolev Institute of Mathematics, Novosibirsk, Siberia)
N.A. Shchuchkin (Volgograd State Socio-Pedagogical University, Volgograd, Russia)
J.D. H. Smith (Iowa State University, Ames, USA)
P.N. Syrbu (Moldova State University, Chisinau, Moldova)
A.A. Ungar (North Dakota State University, USA)
I.M. Wanless (Monash University, Melbourne, Australia)