Abstract
We consider a strongly nonlinear differential equation of the following general type:
where f is a Carathédory function, \(\Phi \) is a strictly increasing homeomorphism (the \(\Phi \)-Laplacian operator), and the function a is continuous and non-negative. We assume that a(t, x) is bounded from below by a non-negative function h(t), independent of x and such that \(1/h \in L^p(0,T)\) for some \(p> 1\), and we require a weak growth condition of Wintner–Nagumo type. Under these assumptions, we prove existence results for the Dirichlet problem associated with the above equation, as well as for different boundary conditions. Our approach combines fixed point techniques and the upper/lower solution method.
Similar content being viewed by others
References
Bereanu, C., Mawhin, J.: Periodic solutions of nonlinear perturbations of \(\Phi \)-Laplacians with possibly bounded \(\Phi \). Nonlinear Anal. TMA 68, 1668–1681 (2008)
Brezis, H.: Functional Analysis, Sobolev Spaces and Partial Differential Equations. Springer Science and Business Media, New York (2010)
Cabada, A., Pouso, R.L.: Existence results for the problem \((\phi (u^\prime ))^\prime =f(t, u, u^\prime )\) with periodic and Neumann boundary conditions. Nonlinear Anal. TMA 30, 1733–1742 (1997)
Cabada, A., Pouso, R.L.: Existence results for the problem \((\phi (u^\prime ))^\prime =f(t, u, u^\prime )\) with nonlinear boundary conditions. Nonlinear Anal. TMA 35, 221–231 (1999)
Cabada, A., O’Regan, D., Pouso, R.L.: Second order problems with functional conditions including Sturm–Liouville and multipoint conditions. Math. Nachr. 281, 1254–1263 (2008)
Calamai, A.: Heteroclinic solutions of boundary value problems on the real line involving singular \(\Phi \)-Laplacian operators. J. Math. Anal. Appl. 378, 667–679 (2011)
Calamai, A., Marcelli, C., Papalini, F.: Boundary value problems for singular second order equations. Fixed Point Theory Appl. 2018, Paper No. 20
Cupini, G., Marcelli, C., Papalini, F.: Heteroclinic solutions of boundary-value problems on the real line involving general nonlinear differential operators. Differ. Int. Equ. 24, 619–644 (2011)
El Khattabi, N., Frigon, M., Ayyadi, N.: Multiple solutions of boundary value problems with \(\phi \)-Laplacian operators and under a Wintner–Nagumo growth condition. Bound. Value Probl. 2013, 236, 21 (2013)
Ferracuti, L., Papalini, F.: Boundary value problems for strongly nonlinear multivalued equations involving different \(\Phi \)-Laplacians. Adv. Differ. Equ. 14, 541–566 (2009)
Liu, Y.: Multiple positive solutions to mixed boundary value problems for singular ordinary differential equations on the whole line. Nonlinear Anal. Model. Control 17, 460–480 (2012)
Liu, Y., Yang, P.: Existence and non-existence of positive solutions of BVPs for singular ODEs on whole lines. Kyungpook Math. J. 55, 997–1030 (2015)
Marcelli, C.: Existence of solutions to boundary-value problems governed by general non-autonomous nonlinear differential operators. Electron. J. Differ. Equ. 171 (2012)
Marcelli, C.: The role of boundary data on the solvability of some equations involving non-autonomous nonlinear differential operators. Bound. Value Probl. 252 (2013)
Marcelli, C., Papalini, F.: Boundary value problems for strongly nonlinear equations under a Wintner–Nagumo growth condition. Bound. Value Probl. 2017 Paper No. 183 (2017)
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Biagi, S., Calamai, A. & Papalini, F. Existence results for boundary value problems associated with singular strongly nonlinear equations. J. Fixed Point Theory Appl. 22, 53 (2020). https://doi.org/10.1007/s11784-020-00784-7
Published:
DOI: https://doi.org/10.1007/s11784-020-00784-7
Keywords
- Boundary value problems
- singular \(\phi \)-Laplacian
- lower/upper solutions
- fixed-point
- Winter–Nagumo condition