Electronic Journal of Differential Equations, Vol. 2012 (2012), No. 43, pp. 1-11. Title: Weak solutions for degenerate semilinear elliptic BVPs in unbounded domains Author: Rasmita Kar (Indian Inst. of Technology, Kanpur, India) Abstract: In this article, we prove the existence of a weak solution for the degenerate semilinear elliptic Dirichlet boundary-value problem $$\displaylines{ Lu(x)+\sum_{i=1}^n g(x)h(u(x))D_iu(x)=f(x)\quad \hbox{in }\Omega,\cr u=0\quad \hbox{on }\partial\Omega, }$$ in a suitable weighted Sobolev space. Here $\Omega\subset\mathbb{R}^n$, $1\leq n\leq3,$ is not necessarily bounded. Submitted September 17, 2011. Published March 20, 2012. Math Subject Classifications: 46E35, 35J61. Key Words: Semilinear elliptic boundary value problem; unbounded domain; pseudomonotone operator.