Analysing human societies as complex systems can provide an insight into historical processes and the strengths and weaknesses of capitalism. Analysing human societies as complex systems can provide ...

Now, on to the subject of complex numbers. We have stayed away from this subject until now simply because we did not want to confuse things. Initially, it is easy to think of signals as “real valued.” ...

Several years ago one of us, Toni, asked another of us, Marco, to come to his office at the Institute of Photonic Sciences, a large research center in Castelldefels near Barcelona. “There is a problem ...

Many important phenomena, concerning ecosystems, societies, our health, or even science itself, are more than the simple sum of their parts. Complex systems are what emerge when basic building blocks ...