## (pre)publications

- (With Andrew Harder, Zhiyuan Li, and Junliang Shen) P=W for Lagrangian fibrations and degenerations of hyper-Kähler manifolds. arXiv:1908.07510.
- (With Junliang Shen) Topology of Lagrangian fibrations and Hodge theory of hyper-Kähler manifolds. arXiv:1812.10673.
- (With Georg Oberdieck and Junliang Shen) Rational curves in holomorphic symplectic varieties and Gromov-Witten invariants. Adv. Math., to appear.
- (With Junliang Shen) K3 categories, one-cycles on cubic fourfolds, and the Beauville-Voisin filtration. J. Inst. Math. Jussieu, to appear.
- (With Dan Petersen and Mehdi Tavakol) Tautological classes with twisted coefficients. arXiv:1705.08875.
- (With Junliang Shen and Xiaolei Zhao) Derived categories of K3 surfaces, O'Grady's filtration, and zero-cycles on holomorphic symplectic varieties. Compos. Math., to appear.
- (With Rahul Pandharipande) Relations in the tautological ring of the moduli space of K3 surfaces. J. Eur. Math. Soc. (JEMS), to appear.
- (With Nebojsa Pavic and Junliang Shen) On O'Grady's generalized Franchetta conjecture. Int. Math. Res. Not. IMRN (2017), no. 16, 4971-4983.
- (With Zhi Jiang) On the Chow ring of certain rational cohomology tori. C. R. Math. Acad. Sci. Paris 355 (2017), no. 5, 571-576.
- (With Yi Zhu) A
^{1}-equivalence of zero cycles on surfaces, II. Ann. K-Theory 3 (2018), no. 3, 379-393. - (With Jim Bryan, Georg Oberdieck, and Rahul Pandharipande) Curve counting on abelian surfaces and threefolds. Algebr. Geom. 5 (2018), no. 4, 398-463.
- Cycles on curves and Jacobians: a tale of two tautological rings. Algebr. Geom. 3 (2016), no. 2, 179-210.
- (With Ben Moonen) Some remarks on modified diagonals. Commun. Contemp. Math. 18 (2016), no. 1, 1550009, 16 pp.
- Finite-dimensionality and cycles on powers of K3 surfaces. Comment. Math. Helv. 90 (2015), no. 2, 503-511.
- Tautological cycles on curves and Jacobians. PhD thesis, Université Paris VI and Radboud Universiteit Nijmegen, 2013.
- The generic nontriviality of the Faber-Pandharipande cycle. Int. Math. Res. Not. IMRN (2015), no. 5, 1263-1277.

## fall 2019

This semester I teach linear algebra for EECS students. Below is the homework schedule.

Week 1. §1.1: 1, 3. §1.2: 1, 2, 3, 6, 7.

Due September 18.

Week 2. §2.1: 2, 5, 7. §2.2: 1, 2, 3.

Week 3. §2.3: 2, 4. §2.4: 2, 4, 5, 8.

Week 4. No classes.

Week 5. §2.5: 5, 6. §2.6: 3, 4. §3.1: 3, 5.

Due October 16.

Week 6. §3.2: 5, 7, 8. §3.3: 2, 5, 6, 9.

## ag activities

Together with Baohua Fu, Lei Fu, Xiaotao Sun, and Zhiyu Tian, I organize the Beijing Algebraic Geometry Colloquium. I also keep a (far from complete) list of algebraic geometry activities in China.

## contact info

BICMR, Peking University

78306 Jingchunyuan Courtyard 78

5 Yiheyuan Road, Haidian District

Beijing 100871, China

+86 (10) 6274 4086