Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The central error of M. W. Evans ECE theory - a type mismatch   This note corrects an erroneous article by M.W. Evans on his GCUFT theory
which he took over in his GCUFT book. Due to Evans' bad habit of suppressing
seemingly unimportant indices type match errors occur that cannot be removed.
In addition some further errors of that article/book chapter are pointed out.

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The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
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The categories of this paper are: patt-sol
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The categories of this paper are: eess
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The categories of this paper are: acc-phys
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
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The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
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The categories of this paper are: bayes-an
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The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
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The categories of this paper are: atom-ph