**About the Editor**

**Cheon Seoung Ryoo** is a professor in Mathematics at Hannam University. He received his Ph.D. degree in Mathematics from Kyushu University. Dr. Ryoo is the author of several research articles on numerical computations with guaranteed accuracy. He has also made contributions to the field of scientific computing, p-adic functional analysis, and analytic number theory. More recently, he has been working with differential equations, dynamical systems, quantum calculus, and special functions.
