convex then the optimal solution is (Q ∗ 1 , S ∗ 1 ) = (Q¯ 1, S¯ 1). However, it is worth mentioning that the solution (Q¯ 1, S¯ 1) does not exist if the following situations occur
convex then the optimal solution is (Q ∗ 1 , S ∗ 1 ) = (Q¯ 1, S¯ 1). However, it is worth mentioning that the solution (Q¯ 1, S¯ 1) does not exist if the following situations occur