인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Abstract This work introduces a numerical technique designed to efficiently solve a specific type of differential equations known as a weakly coupled system of singularly perturbed delay differential equations. The innovation of this approach stems from its unique integration of three key elements: the Numerov method, known for its accuracy in solving second-order ODEs; a fitting factor, which improves handling of the singular perturbation parameter essential for accurately modeling SPDDEs; and the Taylor series expansion, which approximates first-order derivative terms, facilitating the application of the Numerov method to the system. Numerical experiments are conducted with varying perturbation parameters and mesh sizes to validate the method’s effectiveness. The results, expressed in terms of maximum absolute errors and the rate of convergence, demonstrate that the proposed approach achieves first-order uniform convergence.
#Mathematics
#Ordinary differential equation
#Delay differential equation
#Exponential integrator
#Numerical partial differential equations
#Partial differential equation
#Mathematical analysis
#Method of matched asymptotic expansions
#Differential algebraic equation
#Applied mathematics
#Differential equation
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