presentation

• UCSD Optimization and Data Science Seminar. Oct 10, 2018.
• CAM Seminar, University of Tennessee. Sep 19, 2018.
• Jilin University, Jilin, CHINA. Aug 27, 2018.
• China West Normal University, Nanchong, CHINA. Aug 21, 2018.
• Sichuan University, Chengdu, CHINA. Aug 20, 2018.
• Chinese Academy of Sciences, Beijing, CHINA. Aug 16, 2018.
• 2017 Summer School on Numerical Methods for Partial Differential Equations. Guangzhou, CHINA. Aug 10-11, 2017
• Plenary Speakers. 11-th National Conference on Computational Math. XiAn, CHINA. July 22, 2017
• XiAn Jiaotong University, XiAn. CHINA. July 20, 2017
• Nanjing Normal University, Nanjing. CHINA. July 3, 2017
• Sichuan University, Chengdu. CHINA. July 7, 2017.
• University of Electronic Science and Technology of China, Chengdu, CHINA. June 19, 2017
• SIAM Central States Section. University of Arkansas at Little Rock, Little Rock, Arkansas. Sep 30, 2016.
• 9-th National Conference on Finite Element Methods. Xinan Jiaotong University, Emei, Sichuan. Aug 20, 2016.
• Shanghai Jiao Tong University, Shanghai, CHINA. Aug 10-11, 2016.
• Workshop on Numerical Methods for PDE at Peking University, Beijing, CHINA. July 20, 2016.
• Chinese Academy of Sciences, Beijing, CHINA. July 5, 2016.
• MAFELAP, Brunel University London, June 14-17, 2016.
• SoCAMS. Claremont Colleges. June 4, 2016.
• Tufts University. Boston. Feb 13 - 16. 2016.
• University of California at Riverside. Riverside. Feb 3, 2016.
• Chinese Academy of Sciences, Beijing, Jan 4, 2016.
• Shandong University. Jinan. Dec 28 - 30. 2015.
• Sichuan University. Chengdu. Dec 18. 2015.
• Jilin University. Jilin. Dec 7 - 9, 2015.
• Shanghai Jiaotong University. Shanghai. Dec 3-5, 2015.
• Wenzhou University. Wenzhou. Nov 16 - 18, 2015.
• Xiamen University. Xiamen. Nov 6-9, 2015.
• Numerical Methods on Polygon Meshes. Altanata. Oct 26-28, 2015.
• School of Mathematics and Computational Science, Changsha University of Science and Technology. Oct 13, 2015.
• School of Mathematics, Xiangtan University, Oct 11, 2015.
• School of Mathematics, South China Normal University Guangzhou, CHINA. Sep 11, 2015.
• The 8th International Congress on Industrial and Applied Mathematics (ICIAM). Beijing, CHINA, August 10 - 14, 2015.
• School of Mathematical Sciences. Sichuan University. CHINA, July 20, 2015.
• SIAM Conference on Computational Science. Salt Lake City, Utah. March 14 - 15, 2015.
• Numerical Analysis Seminar. Texas A&M. Feb 25, 2015.
• Finite Element Circus. Minnesota. October 24-25, 2014.
• IMA Special workshop. Minnesota. October 22-24, 2014.
• School of Mathematics and Statistics, Beijing Institute of Technology, CHINA, July 10, 2014.
• Beijing Computational Science Research Center, CHINA, July 8, 2014.
• Chinese Academy of Sciences, CHINA, July 8, 2014.
• School of Mathematics, Sichuan University, Chengdu, Sichuan CHINA. July 2, 2014.
• School of Mathematics and Statistics, Wu Han University, CHINA, June 27, 2014.
• Beijing International Center for Mathematical Research (BICMR), CHINA, June 26, 2014.
• ICERM Workshop. Brown University. May 12-16, 2014.
• Oberwolfach Workshop. Oberwolfach, Germany. Nov 17-22, 2013.
• Colloquium. Department of Mathematics and Statistics. Portland State University. Portland, Oregon. Oct 4. 2013.
• School of Mathematics, Sun Yat-sen University International Conference on Frontiers of Numerical PDEs. Guangzhou, CHINA. Aug 2. 2013.
• School of Mathematics, Sichuan University, Chengdu, Sichuan CHINA. July 25, 2013.
• Workshop on Scientific Computing With Applications Kunming, CHINA. July 18, 2013.
• School of Mathematics, South China Normal University Guangzhou, CHINA. July 12, 2013.
• SIAM Annual Meeting San Diego, CA. July 10, 2013.
• Workshop on Multilevel computational methods and optimization Weizmann Institute of Science, Israel Apr 30-May 2, 2013.
• Numerical Approximation of Partial Differential Equations. In Occasion of Ricardo H. Nochetto's 60th Birthday. Gargnano del Garda, Brescia, Italy. Mar 21, 2013.
• AMS Joint Mathematics Meetings. San Diego, Jan 11, 2013.
• Numerical Analysis Seminar, University of Maryland at College Park. Dec 11, 2012.
• Department of Mathematics and Statistics. Missouri University of Science and Technology. Oct 12, 2012.
• Workshop on Efficient Numerical Methods for Partial Differential Equations. Urumqi, China. August 13-18, 2012.
• Eighth International Conference on Scientific Computing and Applications. University of Nevada at Las Vegas, Nevada, April 1 - 4, 2012.
• Frontiers of Computational and Applied Mathematics. Oct 21 - Oct 25, 2011.
• Department of Mathematics, Hong Kong Baptist University. Aug 30, 2011.
• School of Mathematical Science. Peking University. Beijing. CHINA. Aug 15 - 20, 2011.
• Summer School on Multilevel Adaptive Finite Element Methods, Beijing University, CHINA, Aug 10-12, 2010.
• Workshop on Algebraic Multigrid Methods. Kunming, China, Aug 1-10, 2011
• 2011 Sun Yat-sen University International Conference on Frontiers of Numerical PDEs. Guangzhou, CHINA. Aug 1-4. 2011.
• AMS Western Section in Las Vegas. University of Nevada at Las Vegas. Apr 30, 2011.
• Department of Applied Mathematics. Illinois Institute of Technology Chicago, 25 Apr, 2011.
• Invite Speakers of 20-th International Conference on Domain Decomposition Methods. UC San Diego, 7-11 Feb, 2011.
• Changjiang International Conference on Mathematics. Sichuan. CHINA, Aug 9, 2010.
• Summer School on Multilevel Adaptive Finite Element Methods, Beijing, CHINA, July 26-Aug 6, 2010.
• School of Mathematical Sciences. Sichuan University. CHINA, July 6,2010.
• Middle West Numerical Analysis Day, Iowa State University, April 25, 2010
• Scientific Computing Seminars, Department of Mathematics. University of Houston, April 8, 2010.
• Adaptive and Multilevel Methods for Partial Differential Equations 13-14 November 2009, UC San Diego in La Jolla, California.
• 19-th International Conference on Domain Decomposition Methods, Zhangjiajie, CHINA, August 18, 2009.
• International Conference on Applied Analysis and Scientific Computation, Shanghai Normal University, CHINA, June 26, 2009.
• Nanjing University, CHINA, June 23, 2009.
• Chinese Academy of Sciences, CHINA, June 9, 2009.
• 14-th Copper Mountain Conference on Multigrid Methods, March 25, 2009.
• Mathematical Sciences Seminars, University of Nevada at Las Vegas, March 11, 2009.
• SIAM Conference on Computational Science and Engineering (CSE09), Miami, March 4, 2009.
• Computational and Applied Mathematics Seminar, Purdue University, November 21, 2008
• Department of Mathematics Colloquium, Wayne State University, November 3, 2008
• Finite Element Circus, Rensselaer Polytechnic Institute, October 25, 2008,
• Chinese Academy of Sciences, CHINA, July 7, 2008.
• Summer School on AFEM and Multigrid, Beijing, CHINA, July 7--11, 2008.
• Foundation of Computational Mathematics, Hong Kong, CHINA, June 20, 2008.
• Mathematical Sciences Seminars and Colloquium, University of Nevada at Las Vegas, May 6, 2008.
• Applied Math Seminar, University of California, Irvine, April 21, 2008.
• Xiangtan University, CHINA, March 25, 2008.
• Graduate Seminar, University of California, Irvine, November 16, 2007.
• 10th SIAM conference on Geometric Design and Computing, San Antonio, Texas, November 4, 2007.
• Mathematical and Computational Sciences Division Seminar Series, National Institute of Standards and Technology (NIST), June 5, 2007.
• NSF-CBMS Regional Research Conference, University of Iowa, May 23, 2007.
• Finite Element Circus, University of Maryland, April 21, 2007.
• Numerical Analysis Seminar, University of Maryland, January 30, 2007.
• University of California, Irvine (Special Recruitment Colloquium), January 19, 2007.
• Finite Element Circus, The Pennsylvania State University, November 4, 2006.
• Academy of Mathematics and System Sciences, Chinese Academy of Sciences. July 21, 2006.
• 2006 Summer School on the Multiscale Adaptive Method, Beijing University, July 17-21, 2006.
• Numerical Analysis Seminar, UCSD, May 23, 2006.
• Tech Report, National Biomedical Computation Resource, UCSD, Apr. 27, 2006
• Numerical Analysis Seminar, UCSD, Oct. 11, 2005.
• 8th US National Congress on Computational Mechanics Austin, Texas, July 24-28, 2005
• Midwest Numerical Analysis Conference, May 22, 2005
• University of California, San Diego (Special Recruitment Colloquium), Jan 6, 2005
• University of Delaware, Dec 13, 2004
• Wayne State University, Dec 8, 2004
• University of Maryland, Nov 30, 2004
• Finite Element Circus. Syracuse University, Oct 15, 2004
• CAM Luncheon Seminar in Penn State, Sep 24, 2004
• 13th International Meshing Roundtable. Williamsburg, VA. Sep. 20 2004
• Peking University, China, June 21, 2004
• Superconvergence and A Posteriori Error Estimates, Changsha, China, May 31-Jun 2, 2004
• Recent Advances in Adaptive Computation, Hangzhou, China, May 24-28, 2004
• Finite Element Circus, University of Pittsburgh, April 17 2004
• Finite Element Circus. Cornell University, Nov 8, 2003
• CAM Luncheon Seminar in Penn State, Nov 14, 2003

Other Activities

• Advances in Mathematics of Finite Elements. Austin, TX, March 21-22, 2016.
• IMA workshop on Numerical Solutions of Partial Differential Equations: Fast Solution Techniques. November 29 - December 3, 2010
• IMA-PI Workshop on Numerical Simulation of Complex Fluids and MHD at Penn State, March 1-3, 2010
• Visit Prof R.H. Nochetto at University of Maryland, March 21-26, 2010
• Organize the workshop on multilevel and adaptive methods at Peking University, Beijing, Aug 28-30, 2009