Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Possible scenario of the melting of metals   A microscopic picture of the ``preparation'' of a crystal to the transition
to liquid state at the approach to melting temperature is proposed. Basing on
simple crystallogeometric considerations and the analysis of the computational
results for corresponding anharmonic characteristics an evaluation is given for
the magnitude of atomic displacements leading to the appearance of close packed
Bernal pseudonuclei in the solid phase. A physical meaning of the classical
Lindeman criterion and the mechanisms of the formation of free volume in the
crystal phase are discussed.

37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th