Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quasi-isotropic cascade in MHD turbulence with mean field   We propose a phenomenological theory of incompressible magnetohydrodynamic
turbulence in the presence of a strong large-scale magnetic field, which
establishes a link between the known anisotropic models of strong and weak MHD
turbulence We argue that the Iroshnikov-Kraichnan isotropic cascade develops
naturally within the plane perpendicular to the mean field, while
oblique-parallel cascades with weaker amplitudes can develop, triggered by the
perpendicular cascade, with a reduced flux resulting from a quasi-resonance
condition. The resulting energy spectrum $E(k_\parallel,k_\bot)$ has the same
slope in all directions. The ratio between the extents of the inertial range in
the parallel and perpendicular directions is equal to $b_{rms}/B_0$. These
properties match those found in recent 3D MHD simulations with isotropic
forcing reported in [R. Grappin and W.-C. M\"uller, Phys. Rev. E \textbf{82},
26406 (2010)].

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The categories of this paper are: q-alg
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The categories of this paper are: alg-geom
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The categories of this paper are: bayes-an
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The categories of this paper are: econ
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The categories of this paper are: math
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The categories of this paper are: dg-ga
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The categories of this paper are: adap-org
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The categories of this paper are: gr-qc
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The categories of this paper are: solv-int
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The categories of this paper are: q-bio
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The categories of this paper are: mtrl-th
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The categories of this paper are: cond-mat
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The categories of this paper are: patt-sol
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The categories of this paper are: chem-ph
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The categories of this paper are: funct-an
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The categories of this paper are: quant-ph