Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Adaptive grids as parametrized scale-free networks   In this paper we present a possible model of adaptive grids for numerical
resolution of differential problems, using physical or geometrical properties,
as viscosity or velocity gradient of a moving fluid. The relation between the
values of grid step and these entities is based on the mathematical scheme
offered by the model of scale-free networks, due to Barabasi, so that the step
can be connected to the other variables by a constitutive relation. Some
examples and an application are discussed, showing that this approach can be
further developed for treatment of more complex situations.

17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat