Investigation of Novel Piecewise Fractional Mathematical Model for COVID-19

The outbreak of coronavirus (COVID-19) began in Wuhan, China, and spread all around the globe. For analysis said outbreak, mathematical formulations are important techniques that used for stability predictions infectious diseases. In given article, a novel system differential equations is considered under piecewise fractional operator Caputo Atangana–Baleanu. composed six ordinary (ODEs) different agents. model investigated transferring chain by taking non-constant rates transmission to satisfy feasibility assumption biological environment. There many models proposed scientists. existence solution along with uniqueness format also developed. numerical technique Newton interpolation method developed subinterval approximate each quantity sense Atangana-Baleanu-Caputo (ABC) derivatives. simulation drawn against available data Pakistan on three time intervals, orders converge classical integer orders, which again their equilibrium points. form COVID-19 model, showing crossover dynamics. Stability convergence achieved small less as compared orders.