Thanks a lot for the thought provoking answer!
I would appreciate any reference regarding classical problems
in which similar equations appear and the way in which in
which it has been tackled there.

Thanks a lot for the thought provoking answer!
I would appreciate any reference regarding classical problems
in which similar equations appear and the way in which in
which it has been tackled there.

Thanks a lot! That's exactly what I needed and has solved my problem!

Thanks a lot! That's exactly what I needed and has solved my problem!