Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Finite / Countable State Space Stochastic Processes : Point Processes:
  Characterization of Associated Auto-Correlation Functions:   In this research paper, the relationship between finite / countable state
space stochastic processes and point processes is explored. Utilizing the known
relationship between Poisson processes and continuous time Markov chains,
finite / countable state space random processes are related to continuous time
Markov Chains. Based on the known results for binary random processes,
characterization of auto-correlation function of finite state space random
processes is explored. An important characterization of corner positive
definite matrices is provided.

20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga