Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: There are no $\mathcal{C}^5$-Regular Pure $y$-Global Landsberg Surfaces   We show that there are not pure $\mathcal{C}^5$ regular y-global Landsberg
surfaced. The proof is based on the averaged connection associated with the
linear Chern's connection and the classification of irreducibles holonomies of
torsion-free affine connections. The structure consists on exausting all the
possible cases and showing that in dimension 2 Landsberg condition implies
Berwald condition.

9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
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The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
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The categories of this paper are: q-fin
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The categories of this paper are: eess
28
The categories of this paper are: alg-geom