Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: N=4, d=1 Supersymmetric Hyper-Kaehler Sigma Models with Isospin
  Variables   We provide a Lagrangian formulation of \Nf supersymmetric mechanics
describing the motion of an isospin carrying particle on conformal to
hyper-K\"{a}hler spaces in a non-Abelian background gauge field. In two
examples we discuss in details, this background field is identified with the
field of BPST instantons in the flat and Taub-NUT spaces.

2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph