Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Schur functions for approximation problems   In this paper we propose a new approach to least squares approximation
problems. This approach is based on partitioning and Schur function. The nature
of this approach is combinatorial, while most existing approaches are based on
algebra and algebraic geometry. This problem has several practical
applications. One of them is curve clustering. We use this application to
illustrate the results.

30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph