## The Annals of Probability

### Dirichlet heat kernel estimates for fractional Laplacian with gradient perturbation

#### Abstract

Suppose that $d\geq2$ and $\alpha\in(1,2)$. Let $D$ be a bounded $C^{1,1}$ open set in ${\mathbb{R}}^{d}$ and $b$ an ${\mathbb{R}}^{d}$-valued function on ${\mathbb{R}}^{d}$ whose components are in a certain Kato class of the rotationally symmetric $\alpha$-stable process. In this paper, we derive sharp two-sided heat kernel estimates for $\mathcal{L} ^{b}=\Delta^{\alpha/2}+b\cdot\nabla$ in $D$ with zero exterior condition. We also obtain the boundary Harnack principle for $\mathcal{L} ^{b}$ in $D$ with explicit decay rate.

#### Article information

Source
Ann. Probab., Volume 40, Number 6 (2012), 2483-2538.

Dates
First available in Project Euclid: 26 October 2012

https://projecteuclid.org/euclid.aop/1351258733

Digital Object Identifier
doi:10.1214/11-AOP682

Mathematical Reviews number (MathSciNet)
MR3050510

Zentralblatt MATH identifier
1264.60060

#### Citation

Chen, Zhen-Qing; Kim, Panki; Song, Renming. Dirichlet heat kernel estimates for fractional Laplacian with gradient perturbation. Ann. Probab. 40 (2012), no. 6, 2483--2538. doi:10.1214/11-AOP682. https://projecteuclid.org/euclid.aop/1351258733

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