Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Finding a largest empty convex subset in space is W[1]-hard   We consider the following problem: Given a point set in space find a largest
subset that is in convex position and whose convex hull is empty. We show that
the (decision version of the) problem is W[1]-hard.

30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int