Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Orbit Closures in the Witt Algebra and its Dual Space   Working over an algebraically closed field of characteristic p > 3, we
calculate the orbit closures in the Witt algebra W under the action of its
automorphism group G. We also outline how the same techniques can be used to
determine closures of orbits of all heights except p-1 (in which case we only
obtain a conditional statement) in the dual space W^* under the induced action
of G. As a corollary we prove that the algebra of invariants k[W^*]^G is
trivial.

15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
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The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
3
The categories of this paper are: physics
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th