Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On selfadjoint extensions of symmetric operator with exit from space   We investigate minimal operator corresponding to operator differential
expression with exit from space, study its selfadjoint extensions, also for one
particular selfadjoint extension corresponding to boundary value problem with
some rational function of eigenparameter in boundary condition establish
asymptotics of spectrum and derive trace formula

7
The categories of this paper are: hep-th
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph