35XX 


Partial differential equations 

35Axx 

General topics 


35A01 
Existence problems: global existence, local existence, nonexistence 


35A02 
Uniqueness problems: global uniqueness, local uniqueness, nonuniqueness 


35A08 
Fundamental solutions 


35A09 
Classical solutions 


35A10 
CauchyKovalevskaya theorems 


35A15 
Variational methods 


35A16 
Topological and monotonicity methods 


35A17 
Parametrices 


35A18 
Wave front sets 


35A20 
Analytic methods, singularities 


35A21 
Propagation of singularities 


35A22 
Transform methods (e.g. integral transforms) 


35A23 
Inequalities involving derivatives and differential and integral operators, inequalities for integrals 


35A24 
Methods of ordinary differential equations 


35A25 
Other special methods 


35A27 
Microlocal methods; methods of sheaf theory and homological algebra in PDE [See also 32C38, 58J15] 


35A30 
Geometric theory, characteristics, transformations [See also 58J70, 58J72] 


35A35 
Theoretical approximation to solutions {For numerical analysis, see 65Mxx, 65Nxx} 


35A99 
None of the above, but in this section 