Avram, F.Gómez-Corral, Antonio2023-06-202023-06-2020060167-637710.1016/j.orl.2005.05.005https://hdl.handle.net/20.500.14352/50004This paper deals with two M/M/1 queues served by a single server with threshold switching. Our main goal is to solve the Poisson equation and, as a result, give expressions for the Iona-run expected average cost of holding units and switching actions of the server, and the bias vector.engjournal articlehttp://www.sciencedirect.com/science/article/pii/S0167637705000581http://www.sciencedirect.comrestricted access519.8519.216Poisson equationPolling systemPriority queueThreshold policyInvestigación operativa (Matemáticas)Procesos estocásticos1207 Investigación Operativa1208.08 Procesos Estocásticos