Here is a list of my publications and preprints.

[15]Circle actions and isotopy on moduli space of polygons , with Daniel Burns. pdf.Preprint 2023. [14]Isotopy of symplectic sections in ruled surfaces, with Richard Hind. pdf.Preprint 2023, draft available upon request. [13]Lagrangian $\RP^2$'s in a fixed $\Z/2$ homology class, Jun Li. pdf.Preprint 2022. [12]Isotopy of symplectic spheres and $\pi_1(Ham)$ of rational surfaces, with Tian-Jun Li and Weiwei Wu. pdf.Preprint 2023. [11]The space of tamed almost complex structures on symplectic 4-manifolds via symplectic spheres, with Tian-Jun Li and Weiwei Wu. pdf. Riv.Mat.Univ.Parma, 2022. [10]Chambers in the symplectic cone and stability of Symp for ruled surfaces, With Olguta Buse. pdf.Preprint 2022, submitted. [9]Symplectic Torelli groups of rational surfaces , with Tian-Jun Li and Weiwei Wu. pdf.Preprint 2022, submitted. [8]Penner's pseudo-Anosov maps via half twists , With Anthony Morales*, Robin Rong*, Wendy Wang*, B. Zykoski, B. Winarski, (*stands for an undergraduate co-author) . pdf.Preprint 2020. [7]Symplectic isotopy of non-minimal ruled surfaces, With Olguta Buse. pdf. Math. Zeitschrift, Accepted. [6] Symplectic $(-2)$-spheres and symplectomorphism group of small rational 4-manifolds II, with Tian-Jun Li and Weiwei Wu. pdf. Transactions of the AMS, 2022. [5]Topology of symplectomorphism groups and ball-swappings, With Weiwei Wu. pdf. ICCM Proceeding 2018. [4]Stability of the symplectomorphism group of rational surfaces, With Silvia Anjos, Tian-Jun Li, and Martin Pinsonnault. pdf. Math Annalen, 2023. [3]Symplectic $(-2)$-spheres and symplectomorphism group of small rational 4-manifolds I, With Tian-Jun Li pdf. Pacific Journal of Math. 304.2 (2020), pp. 561-606. [2]The Symplectic mapping class group of $\CP^2 \# n{\overline {\CP^2}}, with n<5$, with Tian-Jun Li and Weiwei Wu. pdf. Michigan Math. J. 64.2 (2015), pp. 319 - 333. Ph.D Thesis [1]Symplectomorphism group of rational surfaces, Ph.D Thesis. (2017) University of Minnesota. Interdisciplinary collaborations Lie group moment maps, Langevin dynamics, and Neural Networks, 2022 , With Jun Zhang The Proof that Leap-frog Schemes of Nonlinear Hamiltonian System is Symplectic Scheme, With Xiufeng Wang and Lei Zhang China Sci. Info., 2010 (vol.19).