1.The Nirenberg problem and its generalizations: A unified approach (with T. Jin, Y.Y. Li). Mathematische Annalen. In Press.

2.Classification theorems for solutions of higher order boundary conformally invariant problems, I (with L. Sun). Journal of Functional Analysis 271 (2016), 3727--3764.

3.Schauder estimates for nonlocal fully nonlinear equations (with T. Jin). Ann. Inst. Henri Poincare, Analyse Nonlineaire. 33 (2016), 1375 -- 1407.

4.Solutions of some Monge-Amp/`ere equations with isolated and line singularities (with T. Jin). Adv. Math 289 (2016), 114--141.

5.A sharp Sobolev trace inequality involving the mean curvature on Riemannian manifolds (with T. Jin). Trans. Amer. Math. Soc. 367 (2015), 6751--6770.

6.Existence and asymptotics for solutions of a non-local $Q$-curvature equation in dimension three (with T. Jin, A. Maalaoui, L. Martinazzi). Calc. Var. Partial Differential Equations 52 (2015), no. 3-4, 469—488.

7.A fractional Yamabe flow and some applications (with T. Jin). J. Reine Angew. Math. 696 (2014), 187--223.

8.On a fractional Nirenberg problem, part I: blow up analysis and compactness of solutions (with T. Jin, Y.Y. Li). J. Eur. Math. Soc. (JEMS) 16 (2014), no. 6, 1111--1171.

9.Local analysis of solutions of fractional semi-linear elliptic equations with isolated singularities (with L. Caffarelli, T. Jin, Y. Sire). Arch. Ration. Mech. Anal. 213 (2014), no. 1, 245--268.

10.A Liouville theorem for solutions of degenerate Monge-Amp/`ere equations (with T. Jin). Comm. Partial Differential Equations 39 (2014), no. 2, 306--320.