Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generalization of Carey's Equality and a Theorem on Stationary
  Population   Carey's Equality pertaining to stationary models is well known. In this
paper, we have stated and proved a fundamental theorem related to the formation
of this Equality. This theorem will provide an in-depth understanding of the
role of each captive subject, and their corresponding follow-up duration in a
stationary population. We have demonstrated a numerical example of a captive
cohort and the survival pattern of medfly populations. These results can be
adopted to understand age-structure and aging process in stationary and
non-stationary population population models. Key words: Captive cohort, life
expectancy, symmetric patterns.

1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int