Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Markov Switching Multi-fractal models as a new class of REM-like
  models in 1-dimensional space   We map the Markov Switching Multi-fractal model (MSM) onto the Random Energy
Model (REM). The MSM is, like the REM, an exactly solvable model in 1-d space
with non-trivial correlation functions. According to our results, four
different statistical physics phases are possible in random walks with
multi-fractal behavior. We also introduce the continuous branching version of
the model, calculate the moments and prove multiscaling behavior. Different
phases have different multi-scaling properties.

18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
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The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
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The categories of this paper are: adap-org
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an