Uniformly valid asymptotic wave propagation based upon variational principles

Mathematics

• Wave Propagation 96%
• Variational Principle 86%
• Valid 66%
• Caustic 59%
• Phase Space 55%
• Configuration Space 48%
• Momentum 42%
• Half line 26%
• Eikonal Equation 20%
• Liouville's theorem 18%
• Wavelength 17%
• Asymptotic Theory 15%
• Transport Equation 15%
• Helmholtz Equation 15%
• Hamiltonian Systems 13%
• Trajectory 11%
• Projection 11%
• Strategy 10%

Engineering & Materials Science

• Wave propagation 94%
• Momentum 81%
• Variational techniques 44%
• Helmholtz equation 43%
• Hamiltonians 35%
• Wavelength 26%
• Trajectories 20%
• Geometry 18%

Physics & Astronomy

• variational principles 100%
• wave propagation 76%
• alkalies 19%
• momentum 14%
• rays 11%
• configurations 11%
• Liouville theorem 10%
• eikonal equation 10%
• Helmholtz equations 8%
• projection 5%
• trajectories 5%
• geometry 3%
• wavelengths 3%