Abstract
We consider the boundary value problem
where f: [0, 1] × ℝ3 → ℝ+, g: [0, 1] → ℝ+ are continuous functions. The case when f = f (u(t)) was studied in 2018 by Guendouz et al. Using the fixed-point theory on cones they established the existence of positive solutions. Here, by the method developed by ourselves very recently, we establish the existence, uniqueness and positivity of the solution under easily verified conditions and propose an iterative method for finding the solution. Some examples demonstrate the validity of the obtained theoretical results and the efficiency of the iterative method.
Similar content being viewed by others
References
S. Benaicha, F. Haddouchi: Positive solutions of a nonlinear fourth-order integral boundary value problem. An. Univ. Vest Timiş., Ser. Mat.-Inform. 54 (2016), 73–86.
M. Benchohra, J. J. Nieto, A. Ouahab: Second-order boundary value problem with integral boundary conditions. Bound. Value Probl. 2011 (2011), Article ID 260309, 9 pages.
A. Boucherif: Positive solutions of second order differential equations with integral boundary conditions. Discrete and Continuous Dynamical Systems 2007, Suppl. AIMS, Springfield, 2007, pp. 155–159.
A. Boucherif: Second-order boundary value problems with integral boundary conditions. Nonlinear Anal., Theory Methods Appl., Ser. A 70 (2009), 364–371.
A. Boucherif, S. M. Bouguima, N. Al-Malki, Z. Benbouziane: Third order differential equations with integral boundary conditions. Nonlinear Anal., Theory Methods Appl., Ser. A, e-Suppl. 71 (2009), e1736–e1743.
Q. A. Dang: Mixed boundary-domain operator in approximate solution of biharmonic type equation. Vietnam J. Math. 26 (1998), 243–252.
Q. A Dang, Q. L. Dang: A simple efficient method for solving sixth-order nonlinear boundary value problems. Comput. Appl. Math. 37 (2018), 16–26.
Q. A Dang, Q. L. Dang, T. K. Q. Ngo: A novel efficient method for nonlinear boundary value problems. Numer. Algorithms 76 (2017), 427–439.
Q. A Dang, T. K. Q. Ngo: Existence results and iterative method for solving the cantilever beam equation with fully nonlinear term. Nonlinear Anal., Real World Appl. 36 (2017), 56–68.
Q. A Dang, T. K. Q. Ngo: New fixed point approach for a fully nonlinear fourth order boundary value problem. Bol. Soc. Parana Mat. (3) 36 (2018), 209–223.
M. Denche, A. Kourta: Boundary value problem for second-order differential operators with integral conditions. Appl. Anal. 84 (2005), 1247–1266.
C. Guendouz, F. Haddouchi, S. Benaicha: Existence of positive solutions for a nonlinear third-order integral boundary value problem. Ann. Acad. Rom. Sci., Math. Appl. 10 (2018), 314–328.
Y. Guo, Y. Liu, Y. Liang: Positive solutions for the third-order boundary value problems with the second derivatives. Bound. Value Probl. 2012 (2012), Articles ID 34, 9 pages.
Y. Guo, F. Yang: Positive solutions for third-order boundary-value problems with the integral boundary conditions and dependence on the first-order derivatives. J. Appl. Math. 2013 (2013), Article ID 721909, 6 pages.
T. Jankowski: Positive solutions for fourth-order differential equations with deviating arguments and integral boundary conditions. Nonlinear Anal., Theory Methods Appl., Ser. A 73 (2010), 1289–1299.
A. Y. Lepin, L. A. Lepin: On a boundary value problem with integral boundary conditions. Differ. Equ. 51 (2015), 1666–1668
A. Y. Lepin, L. A. Lepin: On a boundary value problem with integral boundary conditions. translation fro. Differ. Uravn. 51 (2015), 1686–1688.
H. Li, L. Wang, M. Pei: Solvability of a fourth-order boundary value problem with integral boundary conditions. J. Appl. Math. 2013 (2013), 7 pages.
X. Lv, L. Wang, M. Pei: Monotone positive solution of a fourth-order BVP with integral boundary conditions. Bound. Value Probl. 2015 (2015), Article ID 172, 12 pages.
J.-P. Sun, H.-B. Li: Monotone positive solution of nonlinear third-order BVP with integral boundary conditions. Bound. Value Probl. 2010 (2010), Article ID 874959, 11 pages.
X. Zhang, W. Ge: Positive solutions for a class of boundary-value problems with integral boundary conditions. Comput. Math. Appl. 58 (2009), 203–215.
Author information
Authors and Affiliations
Corresponding author
Additional information
Quang Long Dang is supported by Institute of Information Technology, VAST under the project CS 21.01.
Rights and permissions
About this article
Cite this article
Dang, Q.A., Dang, Q.L. Existence results and iterative method for fully third order nonlinear integral boundary value problems. Appl Math 66, 657–672 (2021). https://doi.org/10.21136/AM.2021.0040-20
Received:
Published:
Issue Date:
DOI: https://doi.org/10.21136/AM.2021.0040-20
Keywords
- fully third order nonlinear differential equation
- integral boundary condition
- positive solution
- iterative method