Lei, male, Bachelor of Mathematics from Inner Mongolia Normal University for Nationalities (Inner Mongolia University for Nationalities), Master of Siping Normal University (Jilin Normal University) and Doctor of Jilin University. I mainly study basic mathematics, and my research direction is low-dimensional topology. He is mainly engaged in some problems related to Heegaard decomposition, incompressible surface and knot theory in three-dimensional manifold theory, and his research work has been funded by the National Natural Science Foundation.