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Mathematics - Physics - 22.11.2011
Mapping a fixed point
Mapping a fixed point
For fifty years, mathematicians have grappled with the so-called "fixed point" theorem. A team has now found an elegant, one-page solution that opens up new perspectives in physics and economics. Take a map of the world. Now put it down on the ground in Central Park, against a rock on Mount Everest, or on your kitchen table; there will always be a point on the map that sits exactly on the actual physical place it represents.

Mathematics - 08.06.2011