Browsing Externally hosted open access publications with University of Galway authors (1) by Author "AGARWAL, RAVI P."
Now showing items 1-3 of 3
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Multiple positive solutions of singular positone dirichlet problems with derivative dependence
YAN, BAOQIANG; O'REGAN, DONAL; AGARWAL, RAVI P. (Cambridge University Press (CUP), 2006-05-01)The existence of multiple positive solutions is presented for the singular Dirichlet boundary value problems [GRAPHICS] using the fixed point index; here f may be singular at x = 0 and x' = 0. -
Positive solutions of nonlocal singular boundary value problems
AGARWAL, RAVI P.; O'REGAN, DONAL; STANĚK, SVATOSLAV (Cambridge University Press (CUP), 2004-09-01)The paper presents the existence result for positive solutions of the differential equation (g(x))" = f(t, x, (g(x))') satisfying the nonlocal boundary conditions x(0) = x(T), min{x(t) : t E J} = 0. Here the positive ... -
Upper and lower solutions for the singular p -laplacian with sign changing nonlinearities via inequality theory
LÜ, HAISHEN; O'REGAN, DONAL; AGARWAL, RAVI P. (Cambridge University Press (CUP), 2005-11-29)In this paper, general existence theorems are presented for the singular equation {-(phi(p)(u'))' = f(t, u, u'), 0 < t < 1 u(0) = u(1) = 0. Throughout, our nonlinearity is allowed to change sign. The singularity may ...