ALIAKBAR MONTAZER HAGHIGHI, PhD, is Professor and Head of
the Department of Mathematics at Prairie View A&M University,
as well as founder and Editor-in-Chief of Applications and
Applied Mathematics: An International Journal (AAM). Dr.
Haghighi's research interests and publications are in the areas of
probability, statistics, stochastic processes, and queueing
theory.
DIMITAR P. MISHEV, PhD, is Professor in the Department of
Mathematics at Prairie View A&M University. The author of
numerous research papers and three books coauthored with Dr.
Haghighi, Dr. Mishev's areas of research interest include
differential and difference equations and queueing theory.