The 4-th workshop on algebraic geometry and geometric modelling, Lijiang, 2009.
Invited speaker in 7-th FoCM on workshop of Multiresolution and adaptivity in numerical PDEs.
Talk title: "Analysis-suitable T-spline | a design-through-design technology".
Invited speaker in The fth Workshop on Young Chinese Computational Mathematicians.
Talk title: "Analysis-suitable T-splines and IGA".
The 4-th conference on Computer mathematics, Guangzhou, 2011.
Talk title: "Recent progress on T-splines".
Invited speaker in the seminar of IGA summer school: IsoGeometric Analysis: a New Paradigm in the Numerical Approximation of PDEs.
Talk title: "On the local re nement for isogeometric analysis representation".
Invited speaker in the Minisymposia in the 14-th International Conference on Approximation Theory.
Talk title: "Analysis-suitable T-splines ".
Invited speaker in the Minisymposia in the 12-th US congress in the computation mechanics.
Talk title: "Analysis-suitable T-splines: characterization, refineability, and approximation ".
Invited speaker in the Minisymposia in the 4-th Asia-Paci c Association for Computational Mechanics.
Talk title: "Hierarchical Analysis-suitable T-splines".
Invited speaker in the Minisymposia in the 11-thWorld Congress on Computational Mechanics.
Talk title: "Semi-structured T-splines".
Keynote speaker in the Minisymposia in the 18-th International Conference on Finite Elements in Flow Problems.
Talk title: "Trimmed T-splines Conversion".
Invited speaker in the Minisymposia in the 8-th ICIAM, Talk title: "Generalizations of T-splines".
Invited speaker in the Minisymposia in the 12-th European Congress on Computational Methods in Applied Sciences and Engineering.
Talk title: "Semi-analysis-suitable T-splines".
Invited speaker in the Minisymposia in the 12-th WCCM (24-29, July, 2016, Korea).
Talk title: "AS++ T-splines".
Review
Reviewers for ACM Transactions on Graphics, Computer-Aided Design, Computer Aided Geometric Design, Computer Methods in Applied Mechanics and Engineering, Mathematics of
Computation, Visual Computer, Applied Mathematics Letters, SCIENCE CHINA Mathematics, GMP etal.