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Chang-Bum Chun

Sungkyunkwan University · Mathematics

About the Lab

Professor Chang-Bum Chun's research lab specializes in the analytical and numerical study of nonlinear partial differential equations arising in mathematical physics and engineering. The lab focuses on developing and applying advanced analytical methods—such as the exp-function method, extended tanh method, and homotopy perturbation method—to derive exact and numerical solutions for nonlinear evolution equations, including time-delayed and memory-influenced systems like the Burgers and Chaffee-Infante equations. The research emphasizes traveling wave solutions, soliton structures, and the dynamics of convection-diffusion processes with finite memory. The lab also integrates symbolic computation to enhance solution accuracy and efficiency.

nonlinear PDEssoliton solutionsexp-function methodtime-delayed equationshomotopy perturbation method

Research Overview

Papers
120
Total Citations
3,337
Papers (5y)
9
Primary Field
Mathematics

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
9total
2022
2023
2024
2025
2026
Citations per year (5y)
21total
20222023202420252026

Selected Papers

15
1
Article|212 citations·2005
Iterative methods improving newton's method by the decomposition method
Changbum Chun
SJR Q1Computers & Mathematics with Applications
Numerical AnalysisMathematics
2
Article|148 citations·2012
On optimal fourth-order iterative methods free from second derivative and their dynamics
Changbum Chun, Mi Young Lee, Beny Neta, Jovana Džunić
SJR Q1Applied Mathematics and Computation
Numerical AnalysisMathematics
3
Article|131 citations·2010
Homotopy perturbation technique for solving two-point boundary value problems – comparison with other methods
Changbum Chun, R. Sakthivel
SJR Q1Computer Physics Communications
Modeling and SimulationMathematics
4
Article|115 citations·2006
Construction of Newton-like iteration methods for solving nonlinear equations
Changbum Chun
SJR Q1Numerische Mathematik
Numerical AnalysisMathematics
5
Article|114 citations·2007
Some fourth-order iterative methods for solving nonlinear equations
Changbum Chun
SJR Q1Applied Mathematics and Computation
Numerical AnalysisMathematics
6
Article|88 citations·2007
Some sixth-order variants of Ostrowski root-finding methods
Changbum Chun, YoonMee Ham
SJR Q1Applied Mathematics and Computation
Numerical AnalysisMathematics
7
Article|80 citations·2007
Some improvements of Jarratt’s method with sixth-order convergence
Changbum Chun
SJR Q1Applied Mathematics and Computation
Numerical AnalysisMathematics
8
Article|78 citations·2006
A new iterative method for solving nonlinear equations
Changbum Chun
SJR Q1Applied Mathematics and Computation
Numerical AnalysisMathematics
9
Article|72 citations·2009
A third-order modification of Newton’s method for multiple roots
Changbum Chun, Beny Neta
SJR Q1Applied Mathematics and Computation
Numerical AnalysisMathematics
10
Article|67 citations·2013
A new optimal eighth-order family of iterative methods for the solution of nonlinear equations
Changbum Chun, Mi Young Lee
SJR Q1Applied Mathematics and Computation
Numerical AnalysisMathematics
11
Article|58 citations·2007
Some fourth-order modifications of Newton’s method
Changbum Chun, YoonMee Ham
SJR Q1Applied Mathematics and Computation
Numerical AnalysisMathematics
12
Article|54 citations·2010
New Soliton Solutions of Chaffee-Infante Equations Using the Exp-Function Method
R. Sakthivel, Changbum Chun
SJR Q3Zeitschrift für Naturforschung AOA

In this paper, the exp-function method is applied by using symbolic computation to construct a variety of new generalized solitonary solutions for the Chaffee-Infante equation with distinct physical structures. The results reveal that the exp-function method is suited for finding travelling wave solutions of nonlinear partial differential equations arising in mathematical physics

Statistical and Nonlinear PhysicsPhysics and Astronomy
13
Article|52 citations·2006
A family of composite fourth-order iterative methods for solving nonlinear equations
Changbum Chun
SJR Q1Applied Mathematics and Computation
Numerical AnalysisMathematics
14
Article|50 citations·2008
New families of nonlinear third-order solvers for finding multiple roots
Changbum Chun, Hwa ju Bae, Beny Neta
SJR Q1Computers & Mathematics with Applications
Numerical AnalysisMathematics
15
Article|49 citations·2013
Choosing weight functions in iterative methods for simple roots
Changbum Chun, Beny Neta, Jeremy E. Kozdon, Melvin R. Scott
SJR Q1Applied Mathematics and Computation
Numerical AnalysisMathematics

Research Areas

Numerical AnalysisModeling and SimulationStatistical and Nonlinear PhysicsComputational Theory and MathematicsMathematical PhysicsApplied Mathematics

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