%0 Journal Article %T A Harnack inequality for fractional Laplace equations with lower order terms %A Jinggang Tan %A Jingang Xiong %J Mathematics %D 2010 %I arXiv %R 10.3934/dcds.2011.31.975 %X We establish a Harnack inequality of fractional Laplace equations without imposing sign condition on the coefficient of zero order term via the Moser's iteration and John-Nirenberg inequality. %U http://arxiv.org/abs/1101.0013v1