Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Discrete-time multi-scale systems   We introduce multi-scale filtering by the way of certain double convolution
systems. We prove stability theorems for these systems and make connections
with function theory in the poly-disc. Finally, we compare the framework
developed here with the white noise space framework, within which a similar
class of double convolution systems has been defined earlier.

36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th