Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A MARKOV chain model of a polling system with parameter regeneration   We study a model of a polling system, that is, a collection of $d$ queues
with a single server that switches from queue to queue. The service time
distribution and arrival rates change randomly every time a queue is emptied.
This model is mapped to a mathematically equivalent model of a random walk with
random choice of transition probabilities, a model which is of independent
interest. All our results are obtained using methods from the constructive
theory of Markov chains. We determine conditions for the existence of
polynomial moments of hitting times for the random walk. An unusual phenomenon
of thickness of the region of null recurrence for both the random walk and the
queueing model is also proved.

1
The categories of this paper are: cs
3
The categories of this paper are: physics
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org