Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Seismic Interevent Time: A Spatial Scaling and Multifractality   The optimal scaling problem for the time t(LxL) between two successive events
in a seismogenic cell of size L is considered. The quantity t(LxL) is defined
for a random cell of a grid covering a seismic region G. We solve that problem
in terms of a multifractal characteristic of epicenters in G known as the
tau-function or generalized fractal dimensions; the solution depends on the
type of cell randomization. Our theoretical deductions are corroborated by
California seismicity with magnitude M>2. In other words, the population of
waiting time distributions for L = 10-100 km provides positive information on
the multifractal nature of seismicity, which impedes the population to be
converted into a unified law by scaling. This study is a follow-up of our
analysis of power/unified laws for seismicity (see PAGEOPH 162 (2005), 1135 and
GJI 162 (2005), 899).

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The categories of this paper are: ao-sci
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The categories of this paper are: supr-con
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The categories of this paper are: patt-sol
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The categories of this paper are: acc-phys
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The categories of this paper are: econ
0
The categories of this paper are: hep-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-ex
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-lat
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The categories of this paper are: math-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: eess
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The categories of this paper are: q-bio
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The categories of this paper are: solv-int
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The categories of this paper are: alg-geom