Fig. 10

Concavity of \(A{P_c}\) w.r.t. warranty period \(\left( {{t_w}} \right)\) and cycle length \(\left( T \right)\) of Example-4.

Concavity of \(A{P_c}\) w.r.t. warranty period \(\left( {{t_w}} \right)\) and cycle length \(\left( T \right)\) of Example-4.