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Theory and Modern Applications

Table 7 Numerical results of reservoir population \(Q(t)\) for fractional parameter \(\tau=0.7,0.8,0.9,1\) and comparison between classical and approximate solution

From: A mathematical model of COVID-19 using fractional derivative: outbreak in India with dynamics of transmission and control

t

Reservoir population Q(t)

Absolute error

α = 0.7

α = 0.8

α = 0.9

α = 1

0

9901.27

9900.9

9900.68

9900.61

0

15

10,042.4

10,166.6

10,194.8

10,216.9

0

30

9992.84

9777.12

9447.94

8986.48

5.45697 × 10−12

45

8357.09

7058.65

5276.77

2940.08

2.27394 × 10−11

60

4105.23

337.37

0

0

4.18368 × 10−11