Browsing University of Galway Support Services by Author "Xian, Xu"
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Existence and multiplicity of solutions for some three-point nonlinear boundary value problems
Xian, Xu; O'Regan, Donal (Springer Nature, 2006-01-01)We study the existence and multiplicity of solutions for the three-point nonlinear boundary value problem u '' ( t) +lambda a(t) f (u) = 0, 0 < t < 1; u( 0) = 0 = u(1)-gamma u(eta), where eta is an element of (0,1), ... -
Multiplicity results via topological degree for impulsive boundary value problems under non-well-ordered upper and lower solution conditions
Xian, Xu; O'Regan, Donal; Agarwal, R. P. (Springer Nature, 2008-01-01)