Results 91 to 100 of about 659 (103)

A note on the singular Sturm-Liouville problem with infinitely many solutions

Electronic Journal of Differential Equations, 2002
We consider the Sturm-Liouville nonlinear boundary-value problem $$ displaylines{ -u''(t) = a(t)f(u(t)), quad 0 < t < 1, cr alpha u(0) - eta u'(0) =0, quad gamma u(1) + delta u'(1) = 0, } $$ where $alpha$, $eta$, $gamma$, $delta geq 0$, $alpha gamma ...
Nickolai Kosmatov
doaj  

Eigenvalue problems for singular multi-point dynamic equations on time scales

Electronic Journal of Differential Equations, 2017
In this article, we study a singular multi-point dynamic eigenvalue problem on time scales. We find existence of positive solutions by constructing the Green's function and studying its positivity eigenvalue intervals. Two examples are given to
Abdulkadir Dogan
doaj  

A new result on the existence of periodic solutions for Liénard equations with a singularity of repulsive type. [PDF]

J Inequal Appl, 2017
Lu S.
europepmc   +1 more source

Nonlinear, Nonhomogeneous Periodic Problems with no Growth Control on the Reaction. [PDF]

J Dyn Control Syst, 2015
Gasiński L, Papageorgiou NS.
europepmc   +1 more source

EIGENVALUES OF SOME NON-LOCAL BOUNDARY-VALUE PROBLEMS

Proceedings of the Edinburgh Mathematical Society, 2003
G. Infante
semanticscholar   +1 more source

EXISTENCE OF POSITIVE SOLUTIONS FOR SUPERLINEAR SEMIPOSITONE $m$-POINT BOUNDARY-VALUE PROBLEMS

Proceedings of the Edinburgh Mathematical Society, 2003
Ruyun Ma
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Positive and maximal positive solutions of singular mixed boundary value problem

Open Mathematics, 2009
Agarwal Ravi, O’Regan Donal, Staněk Svatoslav   +2 more
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Properties of the set of positive solutions to Dirichlet boundary value problems with time singularities

Open Mathematics, 2013
Rachůnková Irena, Staněk Svatoslav
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Integral boundary value problem for fractional order differential equations with non-instantaneous impulses

, 2020
In this paper, we study the integral boundary value problem of fractional differential equations with non-instantaneous impulses. By using some fixed point theorems, we obtain sufficient conditions for existence of a unique solution, at least one ...
Chengyun Long, Jingli Xie, Guoping Chen, Danfeng Luo   +3 more
semanticscholar   +1 more source

Nonlinear Three Point Boundary Value Problem

Sarajevo Journal of Mathematics
In this work, we establish sufficient conditions for the existence of solutions for a three point boundary value problem generated by a third order differential equation. We give sufficient conditions that allow us to obtain the existence of a nontrivial
A. Guezane-Lakoud, A. Frioui
semanticscholar   +1 more source