Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Adaptive estimation and control of unstable periodic dynamics in
  excitable biological systems   Dynamical control of excitable biological systems is often complicated by the
difficult and unreliable task of pre-control identification of unstable
periodic orbits (UPOs). Here we show that, for both chaotic and nonchaotic
systems, UPOs can be located, and their dynamics characterized, during control.
Tracking of system nonstationarities emerges naturally from this approach. Such
a method is potentially valuable for the control of excitable biological
systems, for which pre-control UPO identification is often impractical and
nonstationarities (natural or stimulation-induced) are common.

6
The categories of this paper are: astro-ph
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The categories of this paper are: dg-ga
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph