It is one of the most astonishing results of physics: when a complex system is left alone, it will return to its initial state with almost perfect precision. Gas particles, for example, chaotically ...
Henri Poincaré proved his "recurrence theorem" in 1890: in a mechanical system with bound orbits (particles can't just run off to infinity), any state through which the system passes will be ...
The oldest mathematics journal in the Western Hemisphere in continuous publication, the American Journal of Mathematics ranks as one of the most respected and celebrated journals in its field.
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