Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A note on a paper by Cuadra, Etingof and Walton   We analyse the proof of the main result of a paper by Cuadra, Etingof and
Walton, which says that any action of a semisimple Hopf algebra $H$ on the
$n$th Weyl algebra $A=A_n(K)$ over a field $K$ of characteristic $0$ factors
through a group algebra. We verify that their methods can be used to show that
any action of a semisimple Hopf algebra $H$ on an iterated Ore extension of
derivation type $A=K[x_1;d_1][x_2;d_2][\cdots][x_n;d_n]$ in characteristic zero
factors through a group algebra.

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The categories of this paper are: cond-mat
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The categories of this paper are: dg-ga
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The categories of this paper are: stat
34
The categories of this paper are: chem-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-th
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-ex
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The categories of this paper are: astro-ph
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The categories of this paper are: physics
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The categories of this paper are: funct-an
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The categories of this paper are: hep-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: cmp-lg
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The categories of this paper are: alg-geom