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Dive into the research topics where Dong Man Im is active.

Publication


Featured researches published by Dong Man Im.


Advances in Difference Equations | 2008

Stability of Linear Dynamic Systems on Time Scales

Sung Kyu Choi; Dong Man Im; Namjip Koo

We examine the various types of stability for the solutions of linear dynamic systems on time scales and give two examples.


Abstract and Applied Analysis | 2009

Total Stability in Nonlinear Discrete Volterra Equations with Unbounded Delay

Sung Kyu Choi; Yoon Hoe Goo; Dong Man Im; Namjip Koo

We study the total stability in nonlinear discrete Volterra equations with unbounded delay, as a discrete analogue of the results for integrodifferential equations by Y. Hamaya (1990).


Bulletin of The Korean Mathematical Society | 2005

ASYMPTOTIC EQUIVALENCE BETWEEN LINEAR DIFFERENTIAL SYSTEMS

Sung Kyu Choi; Nam Jip Koo; Dong Man Im

We study the strong stability for linear difierential sys- tems in connection with t1-similarity, and investigate the asymp- totic equivalence between linear difierential systems.


Journal of Mathematical Analysis and Applications | 2006

h-Stability for linear dynamic equations on time scales

Sung Kyu Choi; Nam Jip Koo; Dong Man Im


Journal of applied mathematics & informatics | 2015

ASYMPTOTIC PROPERTY FOR PERTURBED NONLINEAR FUNCTIONAL DIFFERENTIAL SYSTEMS

Dong Man Im; Yoon Hoe Goo


Journal of applied mathematics & informatics | 2014

BOUNDEDNESS IN PERTURBED FUNCTIONAL DIFFERENTIAL SYSTEMS

Sang Il Choi; Dong Man Im; Yoon Hoe Goo


Far East Journal of Mathematical Sciences | 2017

PERTURBATIONS OF NONLINEAR PERTURBED DIFFERENTIAL SYSTEMS

Dong Man Im; Yoon Hoe Goo


Far East Journal of Mathematical Sciences | 2017

UNIFORM LIPSCHITZ STABILITY FOR PERTURBED NONLINEAR DIFFERENTIAL SYSTEMS

Sang Il Choi; Dong Man Im; Yoon Hoe Goo


The Korean Journal of Mathematics | 2016

Boundedness in nonlinear perturbed differential systems via

Dong Man Im; Yoon Hoe Goo


The Korean Journal of Mathematics | 2016

t_{\infty}

Dong Man Im; Yoon Hoe Goo

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Sung Kyu Choi

Chungnam National University

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Namjip Koo

Chungnam National University

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Nam Jip Koo

Chungnam National University

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