35Lxx Partial differential equations of hyperbolic type

• 35L05 Wave equation
  
• 35L15 Initial value problems for second-order, hyperbolic equations
  
• 35L20 Boundary value problems for second-order, hyperbolic equations
  
• 35L25 General theory of higher-order, hyperbolic equations
  
• 35L45 Initial value problems for hyperbolic systems of first-order PDE
  
• 35L55 Hyperbolic systems of higher-order PDE
  
• 35L65 Conservation laws
  
• 35L70 Nonlinear second-order PDE of hyperbolic type