INVITED LECTURES AT CONFERENCES
 Workshop: Collective Dynamics and Model Verification: Connecting Kinetic Modeling to Data, Arizona State University, Temple, Arizona, April 17-19, 2015.
 SIAM Conference on Computational Science and Engineering, Minisymposium on Computational Methods for Kinetic Equations and Related Models, Salt Lake City, Utah, March 14-18, 2015.
 Seminaire: La Mechanique des Fluides Numerique, L'Institut Henri Poincare, Paris, France, Feb 5-6, 2015.
 The 9th International Conference on Computational Physics, Minisymposium on Numerical Methods for Kinetic Equations; Minisymposium on Numerical Simulation of Quantum and Kinetic Problems, National University of Singapore, Singapore, Jan 7-11, 2015 ( Keynote Speaker )
 Workshop on Foundation of Numerical PDE's, Foundation of Computational Mathematics Conference 2014, Montevideo, Uruguay, Dec 18-20, 2014.
 Workshop on Moment Methods in Kinetic Theory II, Fields Institute, Toronto, Canada, Oct 14-17, 2014.
 Multiscale Kinetic and Fluid Problems, Cargese, Corsica, France, Sept 29-Oct 3, 2014.
 LJLL-Shanghai Meeting, UMPC, Paris, France, July 7-9, 2014.
 Workshop on "Multiscale Problems from Physics, Biology and Materials Science", Shanghai Jiao Tong University, Shanghai, China, May 28-31, 2014.
 Workshop on ``Mathematical and Numerical Methods for Quantum, Kinetic and Nonlocal Problems, Beijing Computational Science Research Center, Beijing, China, May 22-24, 2014.
 Kinetics, Non Standard Diffusions and Stochastics: Emerging Challenges in the Sciences, University of Texas-Austin, May 8-9, 2014.
 Modern Perspectives in Applied Mathematics: Theory and Numerics of PDEs, (in honor of the 60th birthday of Eitan Tadmor), Bethesda, Maryland, April 28-May 2, 2014.
 Asymptotic-Preserving Methods for Kinetic Equations, North Carolina State University, Raleigh, NC, Feb 3 - 6, 2014.
 Workshop on Classical and Quantum Mechanical Models of Many-Particle Systems, Oberwolfach, Germany, Dec 1-7, 2013.
 Workshop on Nonlinear Partial Differential Equations, Beijing Polytechnic University, China, Aug 1-3, 2013.
 Asymptotic and Computational Methods for Semiclassical Schrodinger Equations, University of Warwick, UK, July 4-5, 2013. ( Mini Course)
 International Workshop on Computational and Applied Mathematics, Huangshan (Yellow Mountains), China, May 20-24, 2013.
 2013 International Conference on Mathematical Modeling and Computation (ICMMC2013), Wuhan University, China, May 16-19, 2013. ( Plenary Speaker)
 Workshop on Mathematical Methods in Quantum Molecular Dynamics, Banff International Research Station, Banff, Canada, April 28-May 3, 2013.
 Multiscale Modeling and Simulation in Material Science, Shanghai Jiao Tong University, China, April 21-23, 2013.
 Nonlinear Partial Differential Equations--Theories and Applications, Shanghai Jiao Tong University, China, April 16-19, 2013.
 Joint HKUST-SJTU Workshop in Applied Mathematics, Hong Kong University of Science and Technology, Hong Kong, April 11-14, 2013.
 Workshop on Frontiers of Applied Mathematics, Huazhong University of Science an Technology, Wuhan, China, March 15-17, 2013.
 Recent Developments in Applied Mathematics, in honor of George Papanicolaou's 70th Birthday, Stanford University, Jan 25-27, 2013.
The Second Cross-straits Workshop on Computational Mathematics, National Sun Yat-sen University, Kaohsiung, Taiwan, July 27-30, 2012.
 International Conference on Computational Science, on the occasion of Prof. Ben-Yu Guo's 70th Birthday, Shanghai Normal University, China, July 16-20, 2012. ( plenary speaker )
 Workshop on "Eigenvalues/singular values and fast PDE algorithms: acceleration, conditioning, and stability", Banff International Research Station, Banff, Canada, June 24-29, 2012.
 SIAM Conference on Nonlinear Waves and Coherent Structures, Seattle, June 13-16, 2012. ( plenary speaker )
 Nonlinear Evolutionary Partial Differential Equations: Theories and Applications, Shanghai Jiao Tong University, China, June 12-17, 2012.
 Second International Symposiums on Scientific Computing (ISSC12) , Nanjing, China, May 22-25, 2012.
 Spring School on Kinetic Theory and Fluid Mechanics, Lyon, France, March 26-30, 2012.
 Workshop on High Performance Computing, in honor of the 70th birthday of Prof. Jiachang Sun, Chinese Academy of Science, Beijing, China, March 18, 2012.
 Mathematical Theory and Computational Methods for Multiscale Problems, National University of Singapore, Jan 9-13, 2012
 International Conference on Scientific Computing 2012, in celebration of the 60th birthday of Prof. Tony F. Chan, Chinese University of Hong Kong, Hong Kong, Jan 4-7, 2012.
Conference for IPAM's Quantum and Kinetic Transport 2009 (KT2009) Long
Program , Lake Arrowhead, CA, Dec 11-16, 2011
 Partial Differential Equations and Modelization, , University of Paris-6, France, Sept 23, 2011
 The second conference "Numerical approximations of hyperbolic systems with source terms and applications", Roscoff, France, Sept 19-23, 2011
 International Conference on Applied Mathematics and Statistics, Renmin University, Beijing, China, August 21-22, 2011.
 2011 Sun Yat-sen University International Conference on Frontiers of Numerical PDEs, Guangzhou, China, August 2-4, 2011. ( plenary speaker )
 ICIAM 2011, Minisymposium on "Numerical Methods for Kinetic Equations and Related Models"; Minisymposium on "Advances in High Order Numerical Methods for PDEs in Computational Mathematics", Vancouver, Canada, July 18-21, 2011
 Sino-French Workshop on Contemporary Applied Mathematics, Fudan University, Shanghai, China, July 4-8, 2011.
 Summer School on Kinetic Theory, Shanghai Jiaotong University. Shanghai, China, June 20-July 1, 2011. ( mini course )
 SNU Forum on Interdisciplinary Mathematics , Seoul National University, Korea, June 15, 2011.
 2011 International Conference on Applied Mathematics and Interdisciplinary Research , Nankai University, Tianjin, China, June 13-16, 2011.
 Final Annual Meeting of FRG (NSF Focused Research Group): Kinetic Description of Multiscale Phenomena, in honor of Dave Levermore's 60th Birthday, University of Wisconsin-Madison, May 23-27, 2011.
 New Perspectives in Nonlinear PDE's, on the occasion of Prof. Blake Temple's 60th Birthday, University of Michigan-Ann Arbor, May 2-6, 2011 .
 "Kinetic Models of Classical and Quantum Particle Systems", a Conference in the Memory of Naoufel Ben Abdallah, Toulouse, France, March 14-18, 2011.
5th International Congress of Chinese Mathematicians,
Tsinghua University, Beijing, China, Dec 17-22, 2010.
 Workshop on "PDE Models for Quantum Fluids",, Newton Institute, University of Cambridge, UK, Sept 13-17, 2010.
 Workshop on "Modern Applied Mathematics", Fudan University, Shanghai, China, Oct 25-Nov .4, 2010
 Yangtze River International Mathematics Forum, on the occasion of the 70th Birthday of Prof. Liu Yingming, Sichuan University, Chengdu, China Aug 9-14, 2010.
 Meeting on Computational Problems in Material Sciences, Suzhou University, China, Aug 2-5, 2010.
 The First Cross-straits Workshop on Computational Mathematics, Xiamen University, China, Aug 2-5, 2010.
 International Conference on PDEs in Memory of Prof. Wu Xinmou, Beijing, China, July 16-18, 2010.
 10th International Conference Computational and Mathematical Methods in Science and Engneering, Almeria, Spain, June 26-30, 2010. ( keynote speaker )
 5th Summer School on "Methods and Models of Kinetic Theory (M&MKT 2010)", Porto Ercole, Grosseto, Italy, June 13-19, 2010. ( main course )
 Mini-course on Computational Fluid Dynamics, IUSS, University of Ferrara, Italy, June 7-11, 2010 (Lecture series as a Copernicus Visiting Scientist)
 Kinetic Description of Multiscale Phenomena: The 2010 Annual Kinetic FRG Meeting, Brown University, Providence, RI, May 10-14, 2010
 Midwest Numerical Analysis Day 2010, Iowa State University, Ames, Iowa, April 24-25, 2010. ( Keynote Lecture )
 Quantum-Classical Modeling of Chemical Phenomena, University of Maryland, March 8-11, 2010.
 Second Advanced School on Numerical Solutions of PDEs: New Trends and Applications, Malaga, Spain, Feb 8-12, 2010. (series of lectures)
Numerical Analysis of Multiscale Computations,
Banff, Canada, Dec 6-11, 2009.
 Kinetic Description of Multiscale Phenomena: The Annual Kinetic FRG Meeting University of Maryland, College Park, Sept 21-25, 2009
 National Graduate Students Summer School in Applied Mathematics and Statistics , Tsinghua University, Beijing, China, July 9-27, 2009 ( mini course )
 8th International Conference on Computational and Mathematical Methods in Science and Engineering (CMMSE - 2009), Gijon, Spain, June 30-July 3, 2009. ( keynote lecture )
 IPAM Culminating Workshop at Lake Arrowhead, Lake Arrowhead, CA, June 7 - 12, 2009.
 Workshop on " Modern Topics in Nonlinear Kinetic Equations", University of Cambridge, UK, April 20-22, 2009.
 Workshop: Computational Kinetic Transport and Hybrid Methods, IPAM, UCLA, March 30-April 3, 2009
 Quantum and Kinetic Transport: Tutorials, IPAM, UCLA, March 10-13, 2009
 International Conference on Contemporary Applied Mathematics, on the occasion of the 60th birthday of Prof. Andrew Majda, Fudan University, Shanghai, China, Jan. 19-23, 2009
First International Conference on Frontiers in Computational Mathematics,
Guilin, China, Dec 15-17, 2008.
 Workshop on Moment Methods in Kinetic Gas Theory , ETH, Zurich, Switzerland, Nov 6-8, 2008
 Recent Developments in Numerical Methods for Nonlinear Hyperbolic Partial Differential Equations and their Applications , Banff, Canada, Aug 31-Sept 5, 2008.
 The Series Lectures of the Famous Young Mathematicians, School of Mathematical Sciences, Graduate School of Chinese Academy of Sciences, July 14-16, 2008
 Lecture Series on Frontiers of Modern Applied Mathematics, , Fudan University, Shanghai, China, June 13-26, 2008. ( series of lectures )
 12th International Conference on Hyperbolic Problems: Theory, Numerics, Applications , University of Maryland, College Park, June 9-13, 2008. ( plenary lecture )
 Mini-Workshop: Entropies and Optimal Transport in Quantum Mechanics, IPAM, UCLA, June 5-6, 2008.
 Conference on Kinetic Equations: Direct and Inverse Problems, Mantova, Italy, May 15-18, 2008.
 2008 AMS Spring Central Section Meeting, Bloomington, IN, April 5-6, 2008. ( invited address )
 Workshop on Multiscale Modeling, Analysis, and Simulations, Michigan State Univ., East Lansing, MI, March 27-28, 2008
The Fourth International Congress of Chinese Mathematicians,
Zhejiang University, Hangzhou, China, Dec 17-22, 2007
 Workshop on Quantized Vortices in Superfluidity and Superconductivity and Kinetic Theory, National University of Singapore, Dec 10-14, 2007.
 Fourth Pacific Rim Conference on Mathematics, Special Session on Kinetic Theory, City University of Hong Kong, December 7-11, 2007.
 2007-08 Program on Random Media: Interface Problems Workshop, Research Triangle Park, North Carolina, November 15-16, 2007.
 2007 AMS Fall Central Section Meeting, Special Session on Wave Propagation from Mathematical and Numerical Viewpoints, Chicago, IL, Oct. 5-6, 2007.
 An Isaac Newton Institute Follow-up Satellite Workshop: High Frequency Wave Propagation and Scattering, University of Reading, UK, July 24-26, 2007.
 6th International Congress on Industrial and Applied Mathematics, Minisymposium on Mathematical Analysis and Numerical Simulation for Bose-Einstein Condensation; Minisymposium on Level Set Methods: Current Development and Applications. Zurich, Switzerland, July 16-20, 2007.
 Workshop on Numerical Methods and Kinetic Equations, Toulouse, France, July 2-4, 2007.
 Workshop on Applied PDEs: Theory and Numerics, Seoul National University, Korea, May 1, 2007
 The Clifford Conference: Nonlinear PDEs: Analysis, Numerics and Applications, Tulane University, New Orlean, March 21-25, 2007.
 Workshop on Computational High Frequency Waves, Wolfgang Pauli Institute, University of Vienna, Austria, Feb 21-23, 2007 ( mini-courses )
 Air Force Annual Workshop on Computational Electromagnetic Waves, San Antonia, Texas, Jan 9-11, 2007
Classical and Quantum Mechanical Models of Many-Particle Systems
Oberwolfach, Germany, Dec 3-9, 2006.
 The First Conference on High Performance Scientific Computation Research, , Hangzhou, China, Oct 27-30, 2006.
 The Symposium on Multi-Physics and Multi-Scale Computation of Materials, Xi'an, China, Oct 13-16, 2006.
 Mathematical Modeling National Summer Camp for College Students of China, Beijing, China, Aug 7, 2006 ( Keynote speaker )
 The 9th Annual China Society for Industrial and Applied Mathematics (CSIAM) Conference, Nanjing, China, Aug 26-30, 2006. ( plenary speaker )
 International Conference on Nonlinear Evolutionary Partial Differential Equations, Xining, Qinghai, China, July 30-Aug 3, 2006 ( plenary speaker )
 International Workshop on Scientific Computing, In Honor of Prof. Lin Qun's 70th Birthday, Beijing, China, July 15-16, 2006
 international Workshop on Scientific Computing, National Taiwan University, Taipei, June 26-30, 2006
 International Conference on Partial Differential Equations and Numerical Analysis, Hunan Normal University, Changsha, China, June 22-26, 2006 ( plenary speaker )
 2006 International Conference on Applied Mathematics and Interdisciplinary Research-Nankai, , Nankai University, Tianjin, China, June 12-15, 2006.
 Complex quantum and classical systems and effective equations , Erwin Schrodinger Institute (ESI), Vienna, Austria, May-Aug 2006.
Workshop on High Frequency Wave propagation, ,
University of Maryland, College Park, MD, Sept 19-22, 2005.
 International Workshop on Computational Science and its Education, Capital Normal University, Beijing, China, Aug 29-Sept 2, 2005.
 The international conference "Mathematics: opportunity and Challenge", in conjugation with the celebration of the 70th anniversary of Chinese Mathematical Society (CMS), Weihai, Shandong, China, July 25-29, 2005,
 Workshop on Hyperbolic Conservation Laws and Related Topics, Academy of Math and Syst Sci, Chinese Academy of Science, Beijing, China, July 18, 2005.
 Workshop on Nonlinear PDEs and Applications, Capital Normal University, Beijing, China, July 14, 2005
 International Conference on Multiscale Modeling and Scientific Computing, in honor of Professor Bjorn Engquist on occasion of his 60th birthday, Beijing, China, June 10--12, 2005.
 International Conference on Scientific Computing, Nanjing, China, June 4-8, 2005. ( plenary speaker )
 The Midwest Numerical Analysis Conference, University of Iowa, May 20-22, 2005.
 Workshop on "Issues on Computational Transport in Meso and Nano Scales", Austin, Texas, March 4-5, 2005.
 IMA Thematic Year on Mathematics of Materials and Macromolecules, IMA, University of Minnesota, Sept 1, 2004-June 30, 2005.
The Third International Congress of Chinese Mathematicians,
Hong Kong, Dec 17-22, 2004.
 Summer School on Plasma: Mathematical Modelling and Computational Challenges in Plasma Physics and Applications, Institut d'Etudes Scientifiques de Cargese, Corsica, France, Oct 25-30, 2004. ( main course )
 Workshop on Computational Methods in Transport, Lake Tahoe, California, Sept 11-16, 2004.
 Focused Research Group on Kinetic models for multiscale problems, The Banff International Research Station, Alberta, Canada, Aug 21-Sept 4, 2004.
 International Conference on Numerical and Applied PDEs, Jilin University, Changchun, China, June 23-28, 2004.
 Frontiers in Applied Mathematics, Morningside Center of Mathematics, Chinese Academy of Science, Beijing, China, June 14-17, 2004.
 International Workshop on Nonlinear Waves - On the occasion of George Papanicolaou's 60th Birthday, The Chinese University of Hong Kong, Hong Kong, June 1-4, 2004.
 Workshop on Hyperbolic Conservation Laws, Oberwolfach, Germany, April 4-10, 2004.
 3rd Annual Intermountain/Southwest Conference on Industrial and Interdisciplinary Mathematics, Arizona State University, Feb 27-28, 2004.
 Workshop on Multi-Scale Phenomena in Soft-Matter, Nano-Materials , SAMSI, North Carolina, February 15-17, 2004
International Workshop on Nonlinear Analysis and Kinetic Theory , Taiwan,
Dec 13-17, 2003.
 Workshop on Scientific Computing, to celebrate the 70th birthday of Prof. Zhong-Ci Shi, Chinese Academy of Science, Beijing, China, Dec 5-6, 2003.
 Summer School on Applied Mathematics, Peking University, Beijing, China, July 21-Aug 16, 2003. ( Series Lectures )
 ICIAM 2003, 5th International Congress on Industry and Applied Mathematics , Minisymposium on Kinetic Theory and Related Hyperbolic Problems; Minosymposium on Computational methods for kinetic and hyperbolic problems: methods and theory; Minisymposium on Novel Applied and Computational Mathematics Techniques for New Application Fields. Sydney, Australia, July 7-11, 2003
 Summer School on Modeling and Numerical Methods for Multiscale Problems, University of Crete, Greece, June 2-10 2003 ( Main Lecturer )
 AMS Sectional Meeting, Special Sessions on Particle Models and Their Fluid Limits, Bloomington, IN, April 4-6, 2003
 "Around HYperbolic and Kinetic Equations", First annual meeting of the HYKE Network , Vienna, Austria, Feb 24 - 28, 2003 ( Plenary Speaker )
 Workshop on Applied and Numerical PDEs, Peking University, China, Jan 4-5, 2003
Workshop on Multi-scale Problems,
Beijing, China, Aug 18-19, 2002.
 Workshop on PDEs, Capital Normal University, Beijing, China, Aug 15-18, 2002.
 11th International Conference on Discrete Simulation of Fluid Dynamics and Soft Condensed Matter, Fudan University, Shanghai, China, Aug 5-9, 2002.
 Summer School on Applied Mathematics, Tsinghua University, Beijing, China, July 20-Aug 20, 2002. ( Series Lecturer )
 Peking University Special Mathematics Lecture Series, Peking University, Beijing, July 8-Aug 9, 2002 ( Series Lecturer )
 First AMS-UMI Joint International Meeting, , Special Session on Hyperbolic Systems, Pisa, Italy, June 12-16, 2002
 Conference: Advances on Nonlinear PDEs, L'Aquila, Italy, June 5-8, 2002 ( plenary speaker )
 Workshop on Mathematics of Subgrid Scale Phenomena in Atmorspheric and Oceanic Flows, IPAM, UCLA, Jan 28-Feb. 5, 2002
The Second International Congress of Chinese Mathematicians (ICCM 2001),
, Taipei, Taiwan, Dec. 17-22, 2001
 Frontiers of Sciences Symposium, organized by US National Academy of Science and Chinese Academy of Science, Beijing, China, Sept 21-23, 2001 ( plenary speaker )
 Mathematics Conference in Honor of Prof. Su Bu-qing's 100 Birthday, Zhejiang University, Hangzhou, China, July 30-31, 2001
 Summer School on Computational Fluid Dynamics, Peking University, Beijing, China, July 10-Aug 10, 2001 ( series lectures )
 International Symposium on Computational and Applied PDEs, Zhangjiajie, China, July 1-7, 2001
 Peking University Special Mathematics Lectures, Beijing, China, June-July 2001
 International Conference on Nonlinear Evolutionary Partial Differential Equations, The City of Yellow Mountains, China, June 10-15, 2001
 Mathematics Workshop in Celebration of Tsinghua University's 90th Anniversary, Tsinghua University, Beijing, April 27-29, 2001 ( plenary lecture)
 Workshop on Asymptotic and Numerical Methods for Kinetic Equations Oberwolfach, Germany, April 15-21, 2001.
AMS Meeting No.960, Special Session on ``Nonlinear Partial Differential Equations and Applications''
Birmingham, AL, Nov. 10-12, 2000
 Workshop on Hyperbolic Conservation Laws, Oberwolfach, Germany, Oct. 22-28, 2000.
 The TMR Workshop on Advances in Mathematical Semiconductor Modeling, University of Pavia, Italy, Sept 22-23, 2000
 Summer School on Nonlinear Evolutional Equations and Mathematical Physics Morningside Center of Mathematics, Beijing, Aug 5-21, 2000. ( series lectures)
 2000 SIAM Annual Meeting, Minisymposium on Kinetic Models in Applied Sciences, Rio Grande, Puerto Rico, July 10-14, 2000.
 IMA Workshop on Simulation of Transport in Transition Regimes University of Minnesota, May 22-26, 2000.
 International Conference on Dynamical Systems and Differential Equations, Special Session on Dynamical Systems with Applications in Fluid Dynamics, Kennesaw State University, GA, May 18-21, 2000.
 Eighth International Conference on Hyperbolic Problems, University of Magdeburg, Germany, February 28--March 3, 2000.
Workshop on Numerical Methods for Kinetic and Hyperbolic Equations,
University of Ferrera, Italy,
Dec 17-18, 1999 ( plenary lecture)
 AMS Meeting No. 948, Special Session on Mathematical Advances in Transport Phenomena, Austin, TX, Oct. 8-10, 1999.
 Workshop on Material Interfaces, Surfaces and Their Mathematical Methods, Beijing, July 19-21, 1999.
 '99 International Conference on Scientific and Engineering Computing for Young Chinese Scientists, Beijing, July 1-4, 1999
 Workshop on Scientific Computing 99, Baptist University, Hong Kong, June 28-30, 1999.
 Program in Computational PDEs, National Center for Theoretical Sciences, National Tsinghua University, Taiwan, June 5-20, 1999 ( series lectures)
 IMS Conference on Differential Eqautions From Mechanics , The Chinese University of Hong Kong, Hong Kong, May 31--June 5, 1999 ( plenary lecture)
 1999 French National Congress on Numerical Analysis (CANum99) , Ax les Thermes, France, May 17-21, 1999 ( plenary lecture)
 Sixteenth International Conference on Transport Theory, Atlanta, May 10-15, 1999.
 1999 IMACS International Conference on Nonlinear Evolution Equations and Wave Phenomena: Computation and Theory, Athens, GA, April 12-15, 1999.
AMS Meeting No. 935, Special Session on Nonlinear Partial Differential Equations, Chicago, Sept. 12-13, 1998.
 Fifth International Workshop on Mathematical Aspects of Fluids and Plasma Dynamics, Maui, Hawaii, June 28-July 3, 1998 ( plenary lecture)
 Summer Workshop on Computational Materials, Xiangtan, China, May 6-12, 1998 ( series lectures)
 Centennial Conference on Mathematics, Peking University, May 3-May 5, 1998
Summer School on Analysis and Computation of Multiscale
Problems, Academic Sinica, Beijing,
August 1997 ( ten lectures )
 V Workshop on Partial Differential Equations: Theory, Computations, and Applications, IMPA, Rio de Janeiro, Brazil, July 1997
 First Conference of Young Chinese Mathematicians in North America, Berkeley, CA, June 1997
 NSF-CBMS Regional Conference on Shock Wave Theory, Georgia Tech, June 9-13, 1997
Sixth International Conference on Discrete Models for Fluid Mechanics,
Boston University, Augst 1996
 SIAM Annual Meeting Mini Symposium on Mesoscopic Moeding and Simulation on Hydrodynamic Phenomena, Kansas City, KS, July 1996
 Workshop on Numerical Solutions of Partial Differential Equations, Peking University, Beijing, July 1996
 '96 Symposium on Computational Physics for Chinese Overseas and at Home, Beijing, June 1996
 Workshop on Numerical Solutions of Partial Differential Equations, Baptist University, Hong Kong, June 1996
 The 6th International Conference on Hyperbolic Problems , Hong Kong, June 1996
 Hyperbolic Systems of Conservation Laws, Oberwolfach, Germany, April 1996
 SIAM Annual Meeting Mini Symposium on Numerical Simulations of Compressible Flows, Charotte, NC, Oct. 1995.
 International Workshop on Differential Equations and Nonlinear Analysis,
Taxco, Guerrero, Mexico, Nov. 1994
 Workshop on Nonlinear Hyperbolic-Parabolic Partial Difference Equations, Stanford University, August 1994
 Summer School on Applied and Theoretical Fluid Mechanics, Beijing, June 1994
 SIAM Annual Meeting Mini Symposium on High Order Shock Capturing Methods for Hyperbolic Conservation Laws, Philadelphia, July 1993
 NATO Advanced Research Workshop on Singularities in Fluids, Plasmas and Optics, Heraklion, Crete, Greece, July 1992