Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A mathematical model of COVID-19 with an underlying health condition
  using fraction order derivative   Studies have shown that some people with underlying conditions such as
cancer, heart failure, diabetes and hypertension are more likely to get
COVID-19 and have worse outcomes. In this paper, a fractional-order derivative
is proposed to study the transmission dynamics of COVID-19 taking into
consideration population having an underlying condition. The fractional
derivative is defined in the Atangana Beleanu and Caputo (ABC) sense. For the
proposed model, we find the basic reproductive number, the equilibrium points
and determine the stability of these equilibrium points. The existence and the
uniqueness of the solution are established along with Hyers Ulam Stability. The
numerical scheme for the operator was carried out to obtain a numerical
simulation to support the analytical results. COVID-19 cases from March to June
2020 of Ghana were used to validate the model. The numerical simulation
revealed a decline in infections as the fractional operator was increased from
0.6 within the 120 days. Time-dependent optimal control was incorporated into
the model. The numerical simulation of the optimal control revealed,
vaccination reduces the number of individuals susceptible to the COVID-19,
exposed to the COVID-19 and Covid-19 patients with and without an underlying
health condition.

11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
3
The categories of this paper are: physics
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg