11 citations · 11 across the 4 of their papers we have counts for
4 papers
Diffusion equations with general nonlocal time and space derivatives
Chung-Sik Sin, Hyong-Chol O, Sang-Mun Kim
In the present study, firstly, based on the continuous time random walk (CTRW) theory, general diffusion equations are derived. The time derivative is taken as the general Caputo-t…
A Periodic Solution to Impulsive Logistic Equation
Gyong-Chol Kim, Hyong-Chol O, Sang-Mun Kim +1
In this paper is provided a new representation of periodic solution to the impulsive Logistic equation considered in [7].
Conditions for Bifurcations in a Non-Autonomous Scalar Differential Equation
Sang-Mun Kim, Hyong-Chol O
In this paper are provided some sufficient conditions for a non autonomous scalar differential equation to have saddle node, transcritical and pitchfork bifurcations using higher o…
Investigation on Bifurcation of Map Satisfying Condition of Periodic Doubling Bifurcation
Sang-Mun Kim
In this paper, we consider sufficient conditions for an invariant double circle to occur in a one parameter discrete dynamical systems on a cylinder.