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About the College

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  • About the College
  • Faculty
  • Mathematics

Faculty - Mathematics

  • Professor
  • CHUN, CHANGBUM

Research Interest

Numerical Analysis

Journal Articles

  • (2026)  Third order methods for multiple roots of nonlinear equations with applications.  JOURNAL OF MATHEMATICAL CHEMISTRY.  64,  6
  • (2025)  Simultaneous Root Approximation: A High-Convergence Iterative Approach.  MATHEMATICAL METHODS IN THE APPLIED SCIENCES.  48,  8
  • (2025)  A GENERAL FAMILY OF MODIFIED BFGS METHODS FOR UNCONSTRAINED OPTIMIZATION.  JOURNAL OF THE KOREAN MATHEMATICAL SOCIETY.  62,  4
  • (2025)  On the linear convergence rate of Riemannian proximal gradient method.  OPTIMIZATION LETTERS.  19,  3
  • (2024)  Exploring Weight Functions: A Family of One-Point Methods for Multiple Roots.  INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS.  21,  7
  • (2024)  A general approach for improving the Padé iterations for the matrix sign function.  JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS.  436, 
  • (2023)  Two-step iterative methods for multiple roots and their applications for solving several physical and chemical problems.  MATHEMATICAL METHODS IN THE APPLIED SCIENCES.  46,  8
  • (2022)  Construction and Dynamics of Efficient High-Order Methods for Nonlinear Systems.  INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS.  10,  9
  • (2021)  An Efficient Derivative-Free Method for the Solution of Systems of Equations.  NUMERICAL FUNCTIONAL ANALYSIS AND OPTIMIZATION.  42,  7
  • (2020)  High-order iterations for systems of nonlinear equations.  INTERNATIONAL JOURNAL OF COMPUTER MATHEMATICS.  97,  8
  • (2020)  A general class of optimal eighth-order derivative free methods for nonlinear equations.  JOURNAL OF MATHEMATICAL CHEMISTRY.  58,  4
  • (2020)  A General Way to Construct a New Optimal Scheme with Eighth-Order Convergence for Nonlinear Equations.  INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS.  17,  -
  • (2020)  A constructive method for solving the equation Xa = b in R-n: A generalization of division in R-n.  APPLIED MATHEMATICS AND COMPUTATION.  364,  -
  • (2019)  Construction of stable and globally convergent schemes for the matrix sign function.  LINEAR ALGEBRA AND ITS APPLICATIONS.  580,  -
  • (2019)  COMPARATIVE STUDY OF METHODS OF VARIOUS ORDERS FOR FINDING SIMPLE ROOTS OF NONLINEAR EQUATIONS.  JOURNAL OF APPLIED ANALYSIS AND COMPUTATION.  9,  2
  • (2019)  Developing high order methods for the solution of systems of nonlinear equations.  APPLIED MATHEMATICS AND COMPUTATION.  342, 
  • (2018)  Comparative study of methods of various orders for finding repeated roots of nonlinear equations.  JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS.  340, 
  • (2017)  How good are methods with memory for the solution of nonlinear equations?.  SeMA Journal.  74,  4
  • (2017)  Comparative study of eighth-order methods for finding simple roots of nonlinear equations.  NUMERICAL ALGORITHMS.  74,  4
  • (2016)  The basins of attraction of Murakami's fifth order family of methods.  APPLIED NUMERICAL MATHEMATICS.  110, 

Conference Paper

  • (2022)  Towards Finding of the Best Methods for Solving Nonlinear Equations.  MATHEMATICAL MODELLING INENGINEERING & HUMAN BEHAVIOUR 2022.  SPAIN
  • (2018)  A study of iterative methods: dynamics and applications.  CJK2018: The Seventh China–Japan–Korea Joint Conference on Numerical Mathematics.  JAPAN
  • (2017)  A general way to construct a new optimal scheme with eighth-order convergence for nonlinear equations.  The 8th International Conference on Computational Methods (ICCM2017).  CHINA
  • (2017)  Recurrence relations-based convergence analysis of a twostep Newton-like method in Banach spaces under milder condition with applications.  2017 대한수학회 봄 연구발표회.  KOREA, REPUBLIC OF
  • (2011)  Recurrence relations for semilocal convergence of a family of methods in Banach spaces.  2011 대한수학회 봄 연구발표회.  KOREA, REPUBLIC OF
  • (2010)  (학술대회발표강연제목) New solitary wave solutions to nonlinear evolution equations by the exp-function method.  (학술회의명)The 3rd International Symposium on Nonlinear Dynamics,2010.  CHINA