--------------------------------------------------------

Research interest

Problems that might be intractable without the use of set theory. 

 -------------------------------------------------------------------

Publication

• (with S.Zhang) Filter-Menger set of reals in Cohen extensions, Mathematical Logic Quarterly, 2024.
  

• (with J. He and S.Zhang) Splitting positive sets, Science China Mathematics, 2023.

•  (with S.Zhang) Capturing topological spaces by countable elementary submodels， Houston Journal of Mathematics, 48(1), 2022 (published online in 2023).

• (with X.G. Zhou and S. Lin) I_sn-sequential spaces and the images of metric spaces, Topology and its Applications, 2023.
  

• (with X. He and S. Zhang) More on ideal limit points, Topology and its applications, 2022. 

•  (with X. He  and S.Zhang) The Borel comlexity of ideal limit points, Topology and its applications, 2022. 

• (with S. Zhang) Some applications of the theory of Katetov order to ideal convergence, Topology and its Applications, 2020.

•  On inverse preservation of regular G_delta diagonals, Questions and Answers in General Topology, 2018.

•  (with S. Zhang) Monotone normality, the cardinal cov(N) and D-spaces, Houston Journal of Mathematics, 2014.

•  (with W.-X. Shi) Monotone normality and neighborhood assignments, Topology and its Applications, 2011.

•  (with W.-X. Shi) A note on D-spaces, Topology and its Applications, 2011.

•  D-spaces and dual properties, PhD thesis, Nanjing University, 2011.

-------------------------------------------------------------------