• Title/Summary/Keyword: Equations and inequalities

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APPROXIMATION OF SOLUTIONS FOR GENERALIZED WIENER-HOPF EQUATIONS AND GENERALIZED VARIATIONAL INEQUALITIES

  • Gu, Guanghui;Su, Yongfu
    • Journal of applied mathematics & informatics
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    • v.28 no.1_2
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    • pp.465-472
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    • 2010
  • The purpose of this article is to introduce a new generalized class of the Wiener-Hopf equations and a new generalized class of the variational inequalities. Using the projection technique, we show that the generalized Wiener-Hopf equations are equivalent to the generalized variational inequalities. We use this alternative equivalence to suggest and analyze an iterative scheme for finding the solution of the generalized Wiener-Hopf equations and the solution of the generalized variational inequalities. The results presented in this paper may be viewed as significant and improvement of the previously known results. In special, our results improve and extend the resent results of M.A. Noor and Z.Y.Huang[M.A. Noor and Z.Y.Huang, Wiener-Hopf equation technique for variational inequalities and nonexpansive mappings, Appl. Math. Comput.(2007), doi:10.1016/j.amc.2007.02.117].

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.

ON RETARDED INTEGRAL INEQUALITIES OF BIHARI-TYPE

  • Choi, Sung Kyu;Choi, Taeyoung;Kim, Daejung;Koo, Namjip
    • Journal of the Chungcheong Mathematical Society
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    • v.22 no.1
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    • pp.49-63
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    • 2009
  • We obtain some retarded integral inequalities of Bihari-type and apply these results to a retarded differential equation of Bernoulli-type.

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WIENER-HOPF EQUATIONS TECHNIQUE FOR VARIATIONAL INEQUALITIES

  • Noor, Muhammad Aslam
    • Journal of applied mathematics & informatics
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    • v.7 no.3
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    • pp.813-831
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    • 2000
  • In recent years, the theory of Wiener-Hopf equations has emerged as a novel and innovative technique for developing efficient and powerful numerical methods for solving variational inequalities and complementarity problems. In this paper, we provide an account of some of the fundamental aspects of the Wiener-Hopf equations with major emphasis on the formulation, computational algorithms, various generalizations and their applications. We also suggest some open problems for further research with sufficient information and references.

GENERALIZED DISCRETE HALANAY INEQUALITIES AND THE ASYMPTOTIC BEHAVIOR OF NONLINEAR DISCRETE SYSTEMS

  • Xu, Liguang
    • Bulletin of the Korean Mathematical Society
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    • v.50 no.5
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    • pp.1555-1565
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    • 2013
  • In this paper, some new generalized discrete Halanay inequalities are established. On the basis of these new established inequalities, we obtain the attracting set and the global asymptotic stability of the nonlinear discrete systems. Our results established here extend the main results in [R. P. Agarwal, Y. H. Kim, and S. K. Sen, New discrete Halanay inequalities: stability of difference equations, Commun. Appl. Anal. 12 (2008), no. 1, 83-90] and [S. Udpin and P. Niamsup, New discrete type inequalities and global stability of nonlinear difference equations, Appl. Math. Lett. 22 (2009), no. 6, 856-859].

ALGORITHMS FOR NONLINEAR MIXED VARIATIONAL INEQUALITIES

  • Muhammad Aslam Noor;Eisa A. Al-Said
    • Journal of applied mathematics & informatics
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    • v.5 no.2
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    • pp.313-328
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    • 1998
  • In this paper we establish the equivalence between the generalized nonlinear mixed variational inequalities and the gener-alized resolvent equations. This equivalence is used to suggest and analyze a number of iterative algorithms for solving generalized vari-ational inequalities. We also discuss the convergence analysis of the propose algorithms. As special cases we obtain various known re-sults from our results.

On Some Fractional Quadratic Integral Inequalities

  • El-Sayed, Ahmed M.A.;Hashem, Hind H.G.
    • Kyungpook Mathematical Journal
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    • v.60 no.1
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    • pp.211-222
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    • 2020
  • Integral inequalities provide a very useful and handy tool for the study of qualitative as well as quantitative properties of solutions of differential and integral equations. The main object of this work is to generalize some integral inequalities of quadratic type not only for integer order but also for arbitrary (fractional) order. We also study some inequalities of Pachpatte type.

ON GENERALIZED FRACTIONAL INTEGRAL INEQUALITIES AND APPLICATIONS TO GLOBAL SOLUTIONS OF FRACTIONAL DIFFERENTIAL EQUATIONS

  • FATMA SAID;BRAHIM KILANI;KHALED BOUKERRIOUA
    • Journal of applied mathematics & informatics
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    • v.42 no.4
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    • pp.915-930
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    • 2024
  • We obtain new fractional integral inequalities which generalize certain inequalities given in [16]. Generalized inequalities can be used to study global existence results for fractional differential equations.

On Some New Nonlinear Integral Inequalities of Gronwall-Bellman Type

  • El-Owaidy, Hassan Mostafa;Ragab, Abdelwahab Abbas;Eldeeb, Ahmed Abdel-Moneim;Abuelela, Waleed Mostafa Kamal
    • Kyungpook Mathematical Journal
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    • v.54 no.4
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    • pp.555-575
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    • 2014
  • In this paper, we establish some new nonlinear integral inequalities of Gronwall-Bellman type. These inequalities generalize some famous inequalities which can be used in applications as handy tools to study the qualitative as well as quantitative properties of solutions of some nonlinear ordinary differential and integral equations. More accurately we extend certain results which have been proved in A. Abdeldaim and M. Yakout [1] and H. El-Owaidy, A. A. Ragab, A. Abdeldaim [7] too.