Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Analogs of generalized resolvents and eigenfunction expansions of
  relations generated by pair of differential operator expressions one of which
  depends on spectral parameter in nonlinear manner   For the relations generated by pair of differential operator expressions one
of which depends on the spectral parameter in the Nevanlinna manner we
construct analogs of the generalized resolvents which are integro-differential
operators. The expansions in eigenfunctions of these relations are obtained.

9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
8
The categories of this paper are: hep-ex
18
The categories of this paper are: econ
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con