35XX 


Partial differential equations 

35Nxx 

Overdetermined systems [See also 58Hxx, 58J10, 58J15] 


35N05 
Overdetermined systems with constant coefficients 


35N10 
Overdetermined systems with variable coefficients (general) 


35N15 
$\overline\partial$Neumann problem and generalizations; formal complexes [See also 32W05, 32W10, 58J10] 


35N99 
None of the above, but in this section 