Matrix string theory
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In physics, matrix string theory is the first known set of equations that describe superstring theory in a non-perturbatively complete and consistent framework. Type IIA string theory can be shown equivalent to a maximally supersymmetric two-dimensional gauge theory, the gauge group of which is U(N) for a large value of N.
It was developed by Lubos Motl and later independently in a more complete paper by Robbert Dijkgraaf, Erik Verlinde, and Herman Verlinde.
See also: Matrix theory (physics)