Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Extremal polynomials in stratified groups   We introduce a family of extremal polynomials associated with the
prolongation of a stratified nilpotent Lie algebra. These polynomials are
related to a new algebraic characterization of abnormal subriemannian geodesics
in stratified nilpotent Lie groups. They satisfy a set of remarkable structure
relations that are used to integrate the adjoint equations.

37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin