Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On a result by Boccardo-Ferone-Fusco-Orsina   Via a symmetric version of Ekeland's principle recently obtained by the
author we improve, in a ball or an annulus, a result of
Boccardo-Ferone-Fusco-Orsina on the properties of minimizing sequences of
functionals of calculus of variations in the non-convex setting.

7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin