The long-term qualitative behavior of most real ecological populations can be mathematically classified as either asymptotic equilibrium or periodic. The reasons underlying these behaviors have been, and are still, debated. Aim of this paper is to show that it is possible to characterize both of...

The present days can be considered a crossroad in the history of our world because the economic, social, and environmental needs do not agree one another. The result is the present socio-economic difficulties, from which it seems very difficult to escape. A new viewpoint must be introduced, but...

The present days can be considered a crossroad in the history of our world because the economic, social, and environmental needs do not agree one another. The result is the present socio-economic difficulties, from which it seems very difficult to escape. A new viewpoint must be introduced, but...