Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Distance Geometry: A Viewing Help for the Solid-Liquid Phase Transition
  in Small Systems   Distance geometry is the study of the arrangements of points in space using
only the mutual distances between them. The basic idea in this letter is to use
distance geometry for thermodynamics studies of small clusters in the
microcanonical ensemble. There are constraints on these distances, which are
shown to explain some characteristic features of the caloric curve in very
small clusters containing 3 or 4 atoms. We anticipate that this approach could
give a novel insight into the phase transitions in larger clusters as well.
During these studies, we have established a very general and rather simple
result for the Jacobian determinant of the change of variables from Cartesian
coordinates to mutual distances, which is of wide applicability in the N-body
problem.

23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas