Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On weighted generalized functions associated with quadratic forms   In this article we consider certain types of weighted generalized functions
associated with nondegenerate quadratic forms. Such functions and their
derivatives are used for constructing fundamental solutions of iterated
ultra-hyperbolic equations with Bessel operator and for constructing negative
real powers of ultra-hyperbolic operators with Bessel operator.

20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int