lanczos-type algorithms are well known for their inherent instability. they typically breakdown occurs when relevant orthogonal polynomials do not exist. current approaches to curing breakdown rely on jumping over the non-existent polynomials to resume computation. this may have to be used many times during the solution process. we suggest an alternative to jumping, which consists of restarting...

the probability of losing a customer in m/g/n/0 and gi/m/n/0 loss queuing systems withheterogeneous servers is minimized. the first system uses a queue discipline in which a customer who arriveswhen there are free servers chooses any one of them with equal probability, but is lost otherwise. providedthat the sum of the servers rates are fixed, loss probability in this system attains minimum val...

Ethernet continues to be the most widely used network architecture today for its low cost and backward compatibility with the existing Ethernet infrastructure. Driven by increasing networking demands of cloud workloads, network speed rapidly migrates from 1Gbps to 10Gbps and beyond. Ethernet's ubiquity and its continuously increasing rate motivate us to fully understand high speed network proce...

Ethernet continues to be the most widely used network architecture today for its low cost and backward compatibility with the existing Ethernet infrastructure. Driven by increasing networking demands of cloud workloads, network speed rapidly migrates from 1 to 10 Gbps and beyond. Ethernet’s ubiquity and its continuously increasing rate motivate us to fully understand high speed network processi...