Frozen Gaussian Approximation for the Dirac Equation in Semiclassical Regime.
Lihui ChaiEmmanuel LorinXu YangPublished in: SIAM J. Numer. Anal. (2019)
Keyphrases
- linear computational complexity
- gaussian convolution
- series expansion
- polynomial approximation
- difference equations
- differential equations
- numerical integration
- expectation propagation
- objective function
- approximation error
- gaussian distribution
- approximation algorithms
- mathematical model
- maximum likelihood
- image processing
- gaussian mixture
- closed form
- special case