In the present paper, a total optimal cost of an inventory model with exponential declining demand and constant deterioration is considered. The time-varying ho
In the smart warehousing system adopting cargo-to-person mode, all the items are stored in the movable shelves. There are some warehouse robots transporting the
In this paper, we prove introduce some fixed point theorems for quasi-contraction under the cyclical conditions. Then, we point out that a common fixed point ex