Iseger, P. den

process point function policy distribution algorithm harris chain system order demand iseger subroutine harri sk +1 chain ln +1 lemma relation model level order quantity inventory bazsa den iseger method section condition emoke state result warehouse probability retailer quantity theorem panjer iteration yield order-up-to level sn +1 degree markov interval property feasibility interval problem proof process x convergence recursion expression space intersection points projection method definition sequence regeneration intersection remark search state space subroutine lm federgruen control proposition cycle approximation 45- measure limit number paper converge intersection point policiesthe zipkin flow conservation law claim sigman equation