• Title/Summary/Keyword: Stieltjes derivatives

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STIELTJES DERIVATIVES AND ITS APPLICATIONS TO INTEGRAL INEQUALITIES OF STIELTJES TYPE

  • Kim, Yung-Jin
    • The Pure and Applied Mathematics
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    • v.18 no.1
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    • pp.63-78
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    • 2011
  • In the present paper, we obtain integral inequalities involving the Kurzweil-Stieltjes integrals which generalize Gronwall-Bellman inequality and we use the inequalities to verify existence of solutions of a certain integral equation. Such inequalities will play an important role in the study of impulsively perturbed systems [9].

GENERALIZED SECOND-ORDER DIFFERENTIAL EQUATIONS WITH TWO-POINT BOUNDARY CONDITIONS

  • Kim, Young Jin
    • The Pure and Applied Mathematics
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    • v.26 no.3
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    • pp.157-175
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    • 2019
  • In this paper we define higher-order Stieltjes derivatives, and using Schaefer's fixed point theorem we investigate the existence of solutions for a class of differential equations involving second-order Stieltjes derivatives with two-point boundary conditions. The equations include ordinary and impulsive differential equations, and difference equations.

SOME OPIAL-TYPE INEQUALITIES APPLICABLE TO DIFFERENTIAL EQUATIONS INVOLVING IMPULSES

  • KIM, YOUNG JIN
    • The Pure and Applied Mathematics
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    • v.22 no.4
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    • pp.315-331
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    • 2015
  • The purpose of this paper is to obtain Opial-type inequalities that are useful to study various qualitative properties of certain differential equations involving impulses. After we obtain some Opial-type inequalities, we apply our results to certain differential equations involving impulses.