ISSN 1817-2172, рег. Эл. № ФС77-39410, ВАК

Дифференциальные Уравнения
и
Процессы Управления

On the Weakly Continuous Solutions of a Coupled System of Functional Integral Equations

Автор(ы):

A.M.A. El-Sayed

Faculty of Science,
Alexandria University,
Alexandria,
Egypt

amasayed@alexu.edu.eg

R. O. Abd El Rahman

Faculty of Science,
Damanhour University,
Behera, Egypt

Fatma F. M. Gaffar

Faculty of Science,
Damanhour University,
Behera, Egypt

Nesreen El-Haddad

Faculty of Science,
Damanhour University,
Behera, Egypt

nesreen_fawzy20@yahoo.com

Аннотация:

The existence of weak solutions of integral equations and some coupled systems of integral equations have been studied, on some suitable assumptions, by some authors. In this work we concern with a coupled system of nonlinear Volterra-Urysohn functional integral equations in the reflexive Banach space E. The existence of weakly continuous solutions, in the Banach space C[I,E], will be proved under some certain assumptions concerning the functional equations that under the integral sign. As an application, the coupled system of nonlinear Volterra-Hammerstien functional integral equations is also studied.

Ключевые слова

Ссылки:

  1. Bugajewski D. , On The existence of Weak Solutions of Integral Equations in Banach Spaces, Comment. Math. Univ. Carolin. 35, 1(1994), 35-41
  2. Cichon M. , Weak Solutions of Ordinary Differential Equations in Banach Spaces, Discuss. Math. Diff. Incl. Control optim., 15(1995), 5-14
  3. Cichon M. , I. Kubiaczyk, Existence Theorem for The Hammerstien Integral Equation, Discuss. Math. Diff. Incl. Control and optimization, 16(2)(1996), 171-177
  4. Dunford N. , Schwartz J. T. , Linear Operators, Interscience, Wiley, New York, 1958
  5. El-Sayed A. M. A. , Hashem H. H. G. , Weak Maximal and Minimal Solutions for Hammerstien and Urysohn Integral Equations in Reflexive Banach Spaces, Differential equations and control processes, No. 4(2008), 51-62
  6. El-Sayed A. M. A. , Hashem H. H. G. , A coupled System of Fractional Order Integral Equations in Reflexive Banach Spaces, Comment. Math. Vol. 52, No. 1(2012), 21-28
  7. El-Sayed A. M. A. , Hashem H. H. G. , Coupled Systems of Hammerstien and Urysohn Integral Equations in Reflexive Banach Spaces, Differential equations and control processes, No. 1(2012), 85-96
  8. Hille E. , Phillips R. S., Functional Analysis and Semi-groups, Amer. Math. Soc. Colloq. Publ. 31, Amer. Math. Soc., Providence, R. I. , 1957
  9. O'Regan D. , Integral equations in reflexive Banach spaces and weak topologies, Amer. Mah. Soc., Vol. 124, No. 2, (1996), 607-614
  10. O'Regan D., Fixed Point Theory for Wealy Sequentially Continuous Mapping, Math. Comput. Modeling, 27(1998), 1-14
  11. O'Regan D., Weak Solutions of Ordinary Differential Equations in Banach Spaces, Applied Mathematics Letters. 12(1999), 101-105
  12. Pettis B. J., On Integration in Vector Spacecs, Trans. Amer. Math. Soc. 44(1938), 277-304
  13. Salem H. A. H., El-Sayed A. M. A., Fractional Order Integral Equations in Reflexive Banach Spaces, Math. Slovaca., 55, No. 2(2005), 169-181

Полный текст (pdf)