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= Wei GONG -- Research

== Finite element method
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- A priori error estimates
- A posteriori error estimates
- Adaptivity
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== PDE-constrained Optimization
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- Numerical analysis
- Optimization algorithms 
- Space domain decomposition method
- Time domain decomposition method
- Multigrid or Multilevel method
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== Scientific Computing
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- Four-dimensional variational data assimilation for NWP
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