Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On $L^1$ extremal problem for entire functions   We generalized the Korkin-Zolotarev theorem to the case of entire functions
having the smallest $L^1$ norm on a system of intervals $E$. If $\bbC\setminus
E$ is a domain of Widom type with the Direct Cauchy Theorem we give an explicit
formula for the minimal deviation. Important relations between the problem and
the theory of canonical systems with reflectionless resolvent functions are
shown.

17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
31
The categories of this paper are: ao-sci