Disorder can eliminate oscillator death

We use an array of diffusively coupled limit-cycle oscillators with a regul ar monotonic trend of natural frequencies to demonstrate that the disorder introduced in the form of random deviations from a linear trend of frequenc ies can weaken considerably desynchronization-induced oscillator death and, as a result, increase oscillation intensity substantially. There exist def inite optimal levels of magnitude of spatial disorder at which maximal osci llatory energy is attained in the array.