Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On complex perturbations of infinite band Schrodinger operators   We study a complex perturbation of a self-adjoint infinite band Schrodinger
operator (defined in the form sense), and obtain the Lieb--Thirring type
inequalities for the rate of convergence of the discrete spectrum of the
perturbed operator to the joint essential spectrum of both operators.

29
The categories of this paper are: funct-an
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
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an