Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Generalization of Mackey's Theory of Induced Representations   In this work we extend the Mackey's theory of induced unitary representations
on a wide class of Krein-isometric induced representations in Krein spaces. The
subgroup theorem and the Kronecker product theorem are shown to be valid for
the induced representations of this class. Among the class of representations
which are subsumed by this extension there are all the representations acting
in the single particle Krein-Hilbert space and in Fock-Krein spaces of the mass
less gauge free fields underling the Standard Model in the local gauge BRST
formalutaion, e. g. of the electromagnetic potential field.

17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph