39XX 


Difference and functional equations 

39Axx 

Difference equations {For dynamical systems, see 37XX; for dynamic equations on time scales, see 34N05} 


39A05 
General theory 


39A06 
Linear equations 


39A10 
Difference equations, additive 


39A12 
Discrete version of topics in analysis 


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


39A14 
Partial difference equations 


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


39A21 
Oscillation theory 


39A22 
Growth, boundedness, comparison of solutions 


39A23 
Periodic solutions 


39A24 
Almost periodic solutions 


39A28 
Bifurcation theory 


39A30 
Stability theory 


39A33 
Complex (chaotic) behavior of solutions 


39A45 
Equations in the complex domain 


39A50 
Stochastic difference equations 


39A60 
Applications 


39A70 
Difference operators [See also 47B39] 


39A99 
None of the above, but in this section 