Electronic Journal of Differential Equations, Vol. 2009(2009), No. 11, pp. 1-11. Title: Existence and uniqueness of positive solutions for a BVP with a p-Laplacian on the half-line Authors: Yu Tian (Beijing Univ. of Posts and Telecom., China) Weigao Ge (Beijing Institute of Technology, China) Abstract: In this work, we consider the second order multi-point boundary-value problem with a p-Laplacian $$\displaylines{ (\rho(t)\Phi_p(x'(t)))'+f(t, x(t), x'(t))=0,\quad t\in [0,+\infty),\cr x(0)=\sum_{i=1}^{m}\alpha_i x(\xi_i), \quad \lim_{t\to\infty}x(t)=0\,. }$$ By applying a nonlinear alternative theorem, we establish existence and uniqueness of solutions on the half-line. Also a uniqueness result for positive solutions is discussed when $f$ depends on the first-order derivative. The emphasis here is on the one dimensional p-Laplacian operator. Submitted May 23, 2008. Published January 09, 2009. Math Subject Classifications: 34B10, 34B18, 34B40. Key Words: Multi-point boundary-value problem; p-Laplacian; half-line; positive solutions; existence; uniqueness.