Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hamiltonian structure and coset construction of the supersymmetric
  extensions of N=2 KdV hierarchy   A manifestly N=2 supersymmetric coset formalism is applied to analyse the
"fermionic" extensions of N=2 $a=4$ and $a=-2$ KdV hierarchies. Both these
hierarchies can be obtained from a manifest N=2 coset construction. This coset
is defined as the quotient of some local but non-linear superalgebra by a
$\hat{U(1)}$ subalgebra. Three superextensions of N=2 KdV hierarchy are
proposed, among which one seems to be entirely new.

30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc