39XX 


Difference and functional equations 

39Axx 

Difference equations {For dynamical systems, see 37XX} 


39A05 
General 


39A10 
Difference equations, additive 


39A11 
Stability and asymptotics of difference equations; oscillatory and periodic solutions, etc. 


39A12 
Discrete version of topics in analysis 


39A13 
Difference equations, scaling ($q$differences) [See also 33Dxx] 


39A20 
Multiplicative and other generalized difference equations, e.g. of Lyness type 


39A70 
Difference operators [See also 47B39] 


39A99 
None of the above, but in this section 