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“Ribbon concordance” will let mathematicians compare knots by linking them across four-dimensional space.
The American mathematician invented entire new ways to understand shapes and spaces.
More than 30 years ago, Andreas Floer changed geometry. Now, two mathematicians have finally figured out how to extend his revolutionary perspective.
Watanabe invented a new way of distinguishing shapes on his way to solving the last open case of the Smale conjecture, a central question in topology about symmetries of the sphere.
So-called topological quantum computing would avoid many of the problems that stand in the way of full-scale quantum computers. But high-profile missteps have led some experts to question whether the field is fooling itself.
Researchers are turning to the mathematics of higher-order interactions to better model the complex connections within their data.
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