In 1940, Ulam [1] proposed the following stability problem: 'When is it true that a function which satisfies some functional equation approximately must be close to one satisfying the equation exactly?'.
His final challenge is a more enviable one: satisfying the enormous demand from organisations to copy the model.
Otherwise, we keep the one satisfying most preference.
Hence, the block preceding (in time) the one satisfying the TD or σ 2 condition should be intra-coded, too.
However, it should be noted here that as proven by Theorem 1 later in the paper, the global optimal solution must be the one satisfying.
The B-observer yields the estimates of the two possible unmeasured input state trajectory pairs associated with the measured input output signal, each one satisfying the reactor mass balances.
We compared the performance of the new refrigerant to five other refrigerants found in literature and found the newly developed refrigerant is the only one satisfying the design constraints for all of the tested natural gas mixture compositions.
For instance, consider a hypothetical NSP adopting the Differentiated Service (DiffServ) architecture and a set of Class of Services (CoS), each one satisfying specific network performance requirements specified for the Y.1541 QoS classes [16].
