Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: What is Generic Structure of the 3D Null-Point Magnetic Reconnection?   The probability of occurrence of various topological configurations of the 3D
null-point reconnection in a random magnetic field is studied. It is found that
the non-axisymmetrical six-tail configuration (or "improper radial null")
should play the dominant role; while all other types of reconnection, in
particular, the axially-symmetric fan-like structures (or "proper radial
nulls") are realized with a much less probability. A characteristic feature of
the six-tail configuration is that at the sufficiently large scales it is
approximately reduced to the well-known 2D X-type structure; and this explains
why the 2D models of reconnection usually work quite well.

31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
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The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
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The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
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The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga
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The categories of this paper are: acc-phys
18
The categories of this paper are: econ