Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Models for the Brane-Bulk Interaction: Toward Understanding Braneworld
  Cosmological Perturbation   Using some simple toy models, we explore the nature of the brane-bulk
interaction for cosmological models with a large extra dimension. We are in
particular interested in understanding the role of the bulk gravitons, which
from the point of view of an observer on the brane will appear to generate
dissipation and nonlocality, effects which cannot be incorporated into an
effective (3+1)-dimensional Lagrangian field theoretic description. We
explicitly work out the dynamics of several discrete systems consisting of a
finite number of degrees of freedom on the boundary coupled to a
(1+1)-dimensional field theory subject to a variety of wave equations. Systems
both with and without time translation invariance are considered and moving
boundaries are discussed as well. The models considered contain all the
qualitative feature of quantized linearized cosmological perturbations for a
Randall-Sundrum universe having an arbitrary expansion history, with the sole
exception of gravitational gauge invariance, which will be treated in a later
paper.

20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn