Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Positive Definite Operator Functions and Sesquilinear Forms   Due to the fundamental works of T. Ando, W. Szyma\'nski, F. H. Szafraniec,
and many others it is well known that sesquilinear forms play an important role
in dilation theory. The crucial fact is that every positive definite operator
function induces a sesquilinear form in a natural way. The purpose of this
survey-like paper is to apply some recent results of Z. Sebesty\'en, Zs.
Tarcsay, and the author for such functions. While most of the results are not
new, the paper's main contribution is the unified discussion from the viewpoint
of sesquilinear forms.

15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
4
The categories of this paper are: cond-mat
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The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ
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The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con