Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On Branes and Oriented B-fields   Novel theories appear on the world-volume of branes by orienting B fields
along various directions of the branes. We review some of the earlier
developments and explore many new examples of these theories. In particular,
among other things, we study the pinning effect of branes near conifold like
singularities and brane-antibrane theories with different fluxes on their
world-volumes. We show that all these theories arise from different limits of
an M-theory configuration with appropriately chosen G-fluxes. This gives us a
way to study them from a unified framework in M-theory.

33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc