Search
Now showing items 1-10 of 126
General existence principles for nonlocal boundary value problems withφ-laplacian and their applications
(Hindawi Limited, 2006-01-01)
On constant-sign periodic solutions in modelling the spread of interdependent epidemics
(Cambridge University Press (CUP), 2006-01-01)
We consider the following model that describes the spread of n types of epidemics which are interdependent on each other:
u(i)(t) = integral(t)(t-r) g(i)(t, s) f(i) (s, u(1)(s), u(2)(s),..., u(n)(s))ds, t is an element of ...
Singular boundary value problems for superlinear second order ordinary and delay differential equations
(Elsevier BV, 1996-09-01)
Positive solvability of systems of nonlinear hammerstein integral equations
(Elsevier BV, 2005-11-01)
Multiple positive solutions of singular discrete p-laplacian problems via variational methods
(Springer Nature, 2005-01-01)
We obtain multiple positive solutions of singular discrete p-Laplacian problems using variational methods.
Construction of upper and lower solutions for singular discrete initial and boundary value problems via inequality theory
(Springer Nature, 2005-01-01)
We present new existence results for singular discrete initial and boundary value problems. In particular our nonlinearity may be singular in its dependent variable and is allowed to change sign.
Solvability of singular second order m-point boundary value problems
(Elsevier BV, 2005-01-01)
Twin positive periodic solutions of second order singular differential systems
(Uniwersytet Mikolaja Kopernika/Nicolaus Copernicus University, 2005-06-01)
In this paper, we study positive periodic solutions to singular second order differential systems. It is proved that such a problem has at least two positive periodic solutions. The proof relies on a nonlinear alternative ...