I have moved to Google Brain. Here is my new website.

I am a Hans Rademacher Instructor of Mathematics at the University of Pennsylvania. Starting from this July, I will be a research resident in Google Brain. I received my PhD from University of Illinois at Urbana-Champaign and my BA from Zhejiang University, Hangzhou, China. Here is my CV.##### Research

My research area is Harmonic analyis: multilinear operators, oscillatory integrals, singular Radon-like transforms, time-frequency analysis and resolution of singularities; see my research statement for more details.

##### Publication

Higher decay inequalities for multilinear oscillatory integrals, with M. Gilula and P.T. Gressman, arXiv:1612.00050, submitted.

Endpoint estimates for one-dimensional oscillatory integral operators , arXiv:1602.05663, Adv. in Math., to appear.

Sharp Estimates for Trilinear Oscillatory Integrals and an Algorithm of Two-dimensional Resolution of Singularities, Rev. Mat. Ibero., 33, No. 1 (2017), 67-116.

Maximal Decay Inequalities for Trilinear Oscillatory Integrals of Convolution Type, with P.T. Gressman, J. Func. Anal., 271, No. 12 (2016), 3695 -3726.

Bilinear Hilbert Transforms Associated with Plane Curves, with J. Guo, J. of Geom. Anal., 26 (2016), no. 2, 967-995.

Uniform Estimates for Bilinear Hilbert Transforms and Bilinear Maximal Functions Associated to Polynomials, with X. Li, Amer. J. Math., 138, No. 4 (2016), 907-962.

##### Current teaching at Penn

2017 Spring | Math 313 | Computational linear algebra |

2016 Fall | Math 361 | Advanced calculus II |

2016 Fall | Math 240 | Calculus III |

##### Past teaching at Penn

2016 Spring | Math 360 | Advanced calculus |

2016 Spring | Math 104 | Calculus I: active learning |

2015 Fall | Math 410 | Complex Analysis |

2015 Spring | Math 313 | Computational linear algebra |

2014 Fall | Math 114 | Calculus II |

2014 Fall | Math 420 | Differential Equations |

##### Teaching at UIUC

2013 Fall | Math 231 | Calculus II | (discusstion) |

2013 Spring | Math 234 | Calculus for business | (discusstion) |

2012 Fall | Math 220 | Calculus | (discusstion) |

Department of Mathematics

David Rittenhouse Lab.

209 South 33rd Street

Philadelphia, PA 19104-6395.

Office: DRL 3N4C

Email: xle at math.upenn.edu

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