id author title date pages extension mime words sentences flesch summary cache txt cord-308296-43gmzqa6 Alkahtani, Badr Saad T. A novel mathematics model of covid-19 with fractional derivative. Stability and numerical analysis 2020-06-17 .txt text/plain 1712 211 67 title: A novel mathematics model of covid-19 with fractional derivative. Uncertainties around the spread of Covid-19 have lead many researchers to understand investigation in many field of technology, science and engineering in the last five months since its appearance in Wuhan-China last December-2019 Many mathematical models were suggested in the last five months with the aim to understand the dynamics spread of the novel deathly disease [10] . with the function f differentiable then, the definition of the new fractional derivative (Atangana-Baleanu derivative in Caputo sense) is given as In this paper, we considered a set of 8 nonlinear ordinary differential equations to model the spread of covid-19 in a given population. We presented the positivity of each class as function of time, for classical and fractional case. New numerical approach for fractional differential equations ./cache/cord-308296-43gmzqa6.txt ./txt/cord-308296-43gmzqa6.txt