Fig. 8.14 Comparison of the pandemic dynamics in Ukraine (red) and Kyiv (blue) versus time in
days. Accumulated number of cases (V j —“circles”; smoothed values—lines, Eq. (8.1); for Kyiv
multiplied by 10). “Triangles” show the first derivative calculated with the use of Eqs. (8.2) and
(8.4) (only for Ukraine, large markers) multiplied by 100 for Ukraine and by 1000 for Kyiv.
“Stars” represent the second derivative calculated with the use of Eqs. (8.3) and (8.5) (only for
Ukraine, large markers) multiplied by 1000 for Ukraine and by 10,000 for Kyiv
Fig. 8.15 Comparison of the pandemic dynamics in Ukraine (red) and Kyiv (blue) before June 1,
2020. Accumulated number of cases (V j —“circles”; smoothed values—lines, Eq. (8.1); for Kyiv
multiplied by 10). “Triangles” show the first derivative calculated with the use of Eq. (8.2)
multiplied by 100 for Ukraine and by 1000 for Kyiv. “Stars” represent the second derivative
calculated with the use of Eq. (8.3) multiplied by 1000 for Ukraine and by 10,000 for Kyiv
8 Identification of the New Waves of the COVID-19 Pandemic
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