Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Octonionic twists for supermembrane matrix models   A certain G_2 times U(1) invariant Hamiltonian arising from the standard
membrane matrix model via conjugating any of the supercharges by a cubic,
octonionic, exponential is proven to have a spectrum covering the whole
positive half-axis. The model could be useful in determining a normalizable
zero-energy state in the original SO(9) invariant SU(N) matrix model.

26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
18
The categories of this paper are: econ
1
The categories of this paper are: cs