Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Comment on "Hamiltonian splitting for the Vlasov-Maxwell equations"   The paper [1] by Crouseilles, Einkemmer, and Faou used an incorrect Poisson
bracket for the Vlasov-Maxwell equations. If the correct Poisson bracket is
used, the solution of one of the subsystems cannot be computed exactly in
general. As a result, one cannot construct a symplectic scheme for the
Vlasov-Maxwell equations using the splitting Hamiltonian method proposed in Ref
[1].

17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
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The categories of this paper are: eess
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The categories of this paper are: alg-geom
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The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph