Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Solution of 3D magnetization problems for superconducting film stacks   A stack of coated conductors is a perspective configuration for various
applications of high temperature superconductors. We present an efficient fast
Fourier transform-based numerical method for magnetization problems for a stack
of flat films of the same (arbitrary) shape and compare it with the recently
proposed finite element methods. For stacks containing a large number of
densely packed films an accurate solution can be obtained as a properly
rescaled solution for a stack of only several films. For an infinite stack the
problem simplifies and becomes similar to that for a single film.

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The categories of this paper are: patt-sol
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The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
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The categories of this paper are: chao-dyn
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin