31XX 


Potential theory {For probabilistic potential theory, see 60J45} 

31Bxx 

Higherdimensional theory 


31B05 
Harmonic, subharmonic, superharmonic functions 


31B10 
Integral representations, integral operators, integral equations methods 


31B15 
Potentials and capacities, extremal length 


31B20 
Boundary value and inverse problems 


31B25 
Boundary behavior 


31B30 
Biharmonic and polyharmonic equations and functions 


31B35 
Connections with differential equations 


31B99 
None of the above, but in this section 