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Existence criteria for operator inclusions in abstract spaces
(Elsevier BV, 2000-01-01)
Some nonoscillation criteria for inclusions
(Cambridge University Press (CUP), 2006-02-01)
New nonoscillatory criteria are presented for second order differential inclusions. The theory relies on Ky Fan's fixed point theorem for upper semicontinuous multifunctions.
Oscillation criteria for certain nth order differential equations with deviating arguments
(Elsevier BV, 2001-10-01)
Fixed point theory for self maps between fréchet spaces
(Elsevier BV, 2001-04-01)
Positive solutions of singular problems with sign changing carathéodory nonlinearities depending on x′
(Elsevier BV, 2003-03-01)
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 ...
Existence criteria for singular boundary value problems with sign changing nonlinearities
(Elsevier BV, 2002-08-01)