Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Glass transition temperature variation, cross-linking and structure in
  network glasses   We give general topological rules which very accurately predict the chemical
trends in glass transition temperature $T_g$ variation as a function of
cross-linking. In multicomponent glasses, these chemical trends permit to
distinguish homogeneous compositions (random network) from inhomogeneous ones
(local phase separation). The stochastic origin of the Gibbs-Di Marzio equation
is predicted at low connectivity and the analytical expression of its parameter
emerges naturally from the calculation.

16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an