Difference equations, as discrete analogues of differential equations, form a fundamental mathematical framework for describing systems that evolve incrementally over time or space. Coupled with ...

Also, the solutions to linear difference equations over the circle group can be simply described in a fashion which an example shows cannot be extended to all compact abelian groups.

This is a preview. Log in through your library . Abstract The deviation of actual sales (or other time-dependent statistics) from a model of sales will give rise to forecasting errors that are ...