Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On generalized Clifford algebras and their physical applications   Generalized Clifford algebras (GCAs) and their physical applications were
extensively studied for about a decade from 1967 by Alladi Ramakrishnan and his
collaborators under the name of L-matrix theory. Some aspects of GCAs and their
physical applications are outlined here. The topics dealt with include: GCAs
and projective representations of finite abelian groups, Alladi Ramakrishnan's
sigma operation approach to the representation theory of Clifford algebra and
GCAs, Dirac's positive energy relativistic wave equation, Weyl-Schwinger
unitary basis for matrix algebra and Alladi Ramakrishnan's matrix decomposition
theorem, finite-dimensional Wigner function, finite-dimensional canonical
transformations, magnetic Bloch functions, finite-dimensional quantum
mechanics, and the relation between GCAs and quantum groups.

32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org