Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Inhomogeneous surface tension of chemically active fluid interfaces   We study the dependence of the surface tension of a fluid interface on the
density profile of a third suspended phase. By means of an approximated model
for the binary mixture and of a perturbative approach we derive close formulas
for the free energy of the system and for the surface tension of the interface.
Our results show a remarkable non-monotonous dependence of the surface tension
on the peak of the density of the suspended phase. Our results also predict the
local value of the surface tension in the case in which the density of the
suspended phase is not homogeneous along the interface.

8
The categories of this paper are: hep-ex
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio