%0 Journal Article %T Regularity of the extremal solution for some elliptic problems with advection %A Xue Luo %A Dong Ye %A Feng Zhou %J Mathematics %D 2010 %I arXiv %X In this note, we investigate the regularity of extremal solution $u^*$ for semilinear elliptic equation $-\triangle u+c(x)\cdot\nabla u=\lambda f(u)$ on a bounded smooth domain of $\mathbb{R}^n$ with Dirichlet boundary condition. Here $f$ is a positive nondecreasing convex function, exploding at a finite value $a\in (0, \infty)$. We show that the extremal solution is regular in low dimensional case. In particular, we prove that for the radial case, all extremal solution is regular in dimension two. %U http://arxiv.org/abs/1004.3956v2