Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Minimum-Area Enclosing Triangle with a Fixed Angle   Given a set S of n points in the plane and a fixed angle 0 < omega < pi, we
show how to find in O(n log n) time all triangles of minimum area with one
angle omega that enclose S. We prove that in general, the solution cannot be
written without cubic roots. We also prove an Omega(n log n) lower bound for
this problem in the algebraic computation tree model. If the input is a convex
n-gon, our algorithm takes Theta(n) time.

20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin