Columbia subject headings:
Differential equations, Hyperbolic--Numerical solutions.
Nonlinear wave equations.
Singularities (Mathematics)
Harvard subject headings:
Differential equations, Hyperbolic--Numerical solutions.
Nonlinear wave equations.
Singularities (Mathematics)
Princeton subject headings:
Differential equations, Hyperbolic.
Geometric diffraction.
Nonlinear wave equations.