## Long Chen |

- Google Scholar Profile
- Geometric Decompositions of Div-Conforming Finite Element Tensors
- FMMformer: Efficient and Flexible Transformer via Decomposed Near-field and Far-field Attention
- A Unified Convergence Analysis of First Order Convex Optimization Methods via Strong Lyapunov Functions
- Immersed Virtual Element Methods for Elliptic Interface Problems
- A Virtual Finite Element Method for Two Dimensional Maxwell Interface Problems with a Background Unfitted Mesh
- A Finite element elasticity complex in three dimensions.
- Discrete Hessian complexes in three dimensions
- Finite elements for divdiv-conforming symmetric tensors in three dimensions

- 2015 July - Present. Professor.

Department of Mathematics, University of California, Irvine. - 2011 July - 2015 June. Associate Professor,

Department of Mathematics, University of California, Irvine. - 2007 July - 2011 June. Assistant Professor,

Department of Mathematics, University of California, Irvine. - 2006 September - 2007 July. Postdoc,

Department of Mathematics, University of Maryland, College Park. - 2005 September - 2006 August. Postdoc,

Department of Mathematics, University of California, San Diego.

- Ph.D Mathematics (Aug. 2000 - Dec.2005)

Pennsylvania State University. Advisor: Prof. Jinchao Xu - M.S Mathematics (Sept. 1997 - July.2000) Beijing University.
- B.S Mathematics (Sept. 1993 - July. 1997) Nanjing University.

- NSF Grant (PI) DMS-2012465 $249,999.00, Aug 2020 - July 2023
- NSF Grant (co-PI) DMS-1913080 $153,626.00, July 2019 - June 2022
- NSF Grant (PI) DMS-1418934 $204,996.00, Aug 2014 - July 2018
- NSF Grant (PI) DMS-1115961 $179,987.00, Oct 2011 - Sept 2014
- NSF Grant (PI) DMS-0811272 $149,999.00, Sept 2008 - Aug 2011
- U.S. DOE Grant (co-PI) DE-SC0006903. $84,196.00. Sept 2011 - Aug 2014

**Office** 510F Rowland Hall;
**Phone** (949) 824-6595;
**Email**
Department of Mathematics,
University of California, Irvine
-Irvine, CA 92697-3875