I have a problem with a system of recurrence equations:
C1,C2,C3,C4 are constants with indices
N,N+Q,N-Q (not functions)
C5,C6 are just constants;
a's are functions of N;
We have to find all C for each N (or for -Qmax<N<Qmax if the system is infinite so we can stop at some Qmax)
Does anybody have an idea about how to solve it?