Question: Who first proposed the physics theory, known to have been later independently proposed in a more complete paper by the current tenured professor at the University of Amsterdam, and director and Leon Levy professor at the Institute for Advanced Study in Princeton?

Related documents: [0]  [DOC] In physics, matrix string theory is a set of equations that describe superstring theory in a non-perturbative framework. Type IIA string theory can be shown to be equivalent to a maximally supersymmetric two-dimensional gauge theory, the gauge group of which is U("N") for a large value of "N". This matrix string theory was first proposed by Luboš Motl in 1997 and later independently in a more complete paper by Robbert Dijkgraaf, Erik Verlinde, and Herman Verlinde. Another matrix string theory equivalent to Type IIB string theory was constructed in 1996 by Ishibashi, Kawai, Kitazawa and Tsuchiya. This version is known as the IKKT matrix model. [END] 
[1]  [DOC] Robertus Henricus "Robbert" Dijkgraaf ( [        ]; born 24 January 1960) is a Dutch mathematical physicist and string theorist. He is tenured professor at the University of Amsterdam, and director and Leon Levy professor at the Institute for Advanced Study in Princeton. [END]  
Answer: Luboš Motl
Luboš Motl