## 35Lxx Hyperbolic equations and systems [See also 58J45]

- 35L02 First-order hyperbolic equations
- 35L03 Initial value problems for first-order hyperbolic equations
- 35L04 Initial-boundary value problems for first-order hyperbolic equations
- 35L05 Wave equation (1)
- 35L10 Second-order hyperbolic equations
- 35L15 Initial value problems for second-order hyperbolic equations
- 35L20 Initial-boundary value problems for second-order hyperbolic equations
- 35L25 Higher-order hyperbolic equations
- 35L30 Initial value problems for higher-order hyperbolic equations
- 35L35 Initial-boundary value problems for higher-order hyperbolic equations
- 35L40 First-order hyperbolic systems
- 35L45 Initial value problems for first-order hyperbolic systems (2)
- 35L50 Initial-boundary value problems for first-order hyperbolic systems (1)
- 35L51 Second-order hyperbolic systems
- 35L52 Initial value problems for second-order hyperbolic systems
- 35L53 Initial-boundary value problems for second-order hyperbolic systems
- 35L55 Higher-order hyperbolic systems
- 35L56 Initial value problems for higher-order hyperbolic systems
- 35L57 Initial-boundary value problems for higher-order hyperbolic systems
- 35L60 Nonlinear first-order hyperbolic equations
- 35L65 Conservation laws
- 35L67 Shocks and singularities [See also 58Kxx, 76L05]
- 35L70 Nonlinear second-order hyperbolic equations
- 35L71 Semilinear second-order hyperbolic equations
- 35L72 Quasilinear second-order hyperbolic equations
- 35L75 Nonlinear higher-order hyperbolic equations
- 35L76 Semilinear higher-order hyperbolic equations
- 35L77 Quasilinear higher-order hyperbolic equations
- 35L80 Degenerate hyperbolic equations
- 35L81 Singular hyperbolic equations
- 35L82 Pseudohyperbolic equations
- 35L85 Linear hyperbolic unilateral problems and linear hyperbolic variational inequalities [See also 35R35, 49J40]
- 35L86 Nonlinear hyperbolic unilateral problems and nonlinear hyperbolic variational inequalities [See also 35R35, 49J40]
- 35L87 Unilateral problems and variational inequalities for hyperbolic systems [See also 35R35, 49J40]
- 35L90 Abstract hyperbolic equations
- 35L99 None of the above, but in this section