Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Super-simple $(v,5,2)$ directed designs and a lower bound for the
  minimum size of their defining set   In this paper, we show that for all $v\equiv 0,1$ (mod 5) and $v \geq 15$,
there exists a super-simple $(v,5,2)$ directed design. Also, we show that for
these parameters there exists a super-simple $(v,5,2)$ directed design such
that its smallest defining sets contain at least half of its blocks.

21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
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The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph