This work concerns with the solvability of third-order periodic fully problems a weighted parameter, where nonlinearity must verify only local monotone condition and no periodic, coercivity or super sublinearity restrictions are assumed, as usual in literature. The arguments based on new type lower upper solutions method, not necessarily well ordered. A Nagumo growth Leray–Schauder’s topologica...

Since the development of early versions of material requirements planning (MRP) systems, it has been known that a weak link in this technique is the failure to consider the available capacity at the time the lot sizes for individual items are calculated. Ignoring the available capacity may result in infeasible production plans i.e., those that can only be accomplished with the use of overtime. ...