String theories can use different geometries to describe the same situations {geometrical duality}. A large finite dimension can behave equivalently to a small one, because a wrapped-around-dimension string can exchange with an unwrapped-in-dimension string, or because Calubi-Yau shapes can exchange number of odd-dimensional holes with number of even-dimensional holes.
Physical Sciences>Physics>String Theory>Duality
5-Physics-String Theory-Duality
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Date Modified: 2022.0224