Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Finite-dimensional collisionless kinetic theory   A collisionless kinetic plasma model may often be cast as an
infinite-dimensional noncanonical Hamiltonian system. I show that, when this is
the case, the model can be discretized in space and particles while preserving
its Hamiltonian structure, thereby producing a finite-dimensional Hamiltonian
system that approximates the original kinetic model. I apply the general theory
to two example systems: the relativistic Vlasov-Maxwell system with spin, and a
gyrokinetic Vlasov-Maxwell system.

30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex