Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fractal Structure of Spin Clusters and Domain Walls in 2D Ising Model   The fractal structure of spin clusters and their boundaries in the critical
two-dimensional (2D) Ising model is investigated numerically. The fractal
dimensions of these geometrical objects are estimated by means of Monte Carlo
simulations on relatively small lattices through standard finite-size scaling.
The obtained results are in excellent agreement with theoretical predictions
and partly provide significant improvements in precision over existing
numerical estimates.

14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
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The categories of this paper are: q-fin
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The categories of this paper are: q-bio
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The categories of this paper are: gr-qc
16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga