Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: IIB Matrix Model   We review our proposal for a constructive definition of superstring, type IIB
matrix model. The IIB matrix model is a manifestly covariant model for
space-time and matter which possesses N=2 supersymmetry in ten dimensions. We
refine our arguments to reproduce string perturbation theory based on the loop
equations. We emphasize that the space-time is dynamically determined from the
eigenvalue distributions of the matrices. We also explain how matter, gauge
fields and gravitation appear as fluctuations around dynamically determined
space-time.

18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph