Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A vectorlike representation of multilayers   We resort to the concept of turns to provide a geometrical representation of
the action of any lossless multilayer, which can be considered as the analogous
in the unit disk to the sliding vectors in Euclidean geometry. This
construction clearly shows the peculiar effects arising in the composition of
multilayers. A simple optical experiment revealing the appearance of the Wigner
angle is analyzed in this framework.

10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int