35XX 


Partial differential equations 

35Lxx 

Partial differential equations of hyperbolic type [See also 58J45] 


35L05 
Wave equation 


35L10 
General theory of secondorder, hyperbolic equations 


35L15 
Initial value problems for secondorder, hyperbolic equations 


35L20 
Boundary value problems for secondorder, hyperbolic equations 


35L25 
General theory of higherorder, hyperbolic equations 


35L30 
Initial value problems for higherorder, hyperbolic equations 


35L35 
Boundary value problems for higherorder, hyperbolic equations 


35L40 
General theory of hyperbolic systems of firstorder PDE 


35L45 
Initial value problems for hyperbolic systems of firstorder PDE 


35L50 
Boundary value problems for hyperbolic systems of firstorder PDE 


35L55 
Hyperbolic systems of higherorder PDE 


35L60 
Nonlinear firstorder PDE of hyperbolic type 


35L65 
Conservation laws 


35L67 
Shocks and singularities [See also 58Kxx, 76L05] 


35L70 
Nonlinear secondorder PDE of hyperbolic type 


35L75 
Nonlinear hyperbolic PDE of higher ($\gtr 2$) order 


35L80 
Hyperbolic PDE of degenerate type 


35L82 
Pseudohyperbolic equations 


35L85 
Unilateral problems; variational inequalities for hyperbolic PDE [See also 35R35, 49J40] 


35L90 
Abstract hyperbolic evolution equations 


35L99 
None of the above, but in this section 