Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strong Minimizers of the Calculus of Variations on Time Scales and the
  Weierstrass Condition   We introduce the notion of strong local minimizer for the problems of the
calculus of variations on time scales. Simple examples show that on a time
scale a weak minimum is not necessarily a strong minimum. A time scale form of
the Weierstrass necessary optimality condition is proved, which enables to
include and generalize in the same result both continuous-time and
discrete-time conditions.

26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con