Remarks on a Scaling Theory of Spread of COVID-19 with an Application to the Case of Bulgaria

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Authors: Svetlan Kartalov, Nikolay K. Vitanov
Cited by: 0

Abstract

We present several remarks on the spread of the COVID-19 epidemics in Bulgaria. The remarks are based on the hypothesis that the spread of the infection exhibits scaling properties similar to the scaling in urban dynamics. The corresponding mathematical theory leads us to a relationship for a power-law dependence of the number of infected in a certain region on the corresponding homochrony number. We prove the correctness of the mathematical theory on the basis of data for several Bulgarian regions for the first large COVID-19 wave in 2020. We observe a collapse of the real data along a single straight line.

Fields of Study & Subjects

COVID-19 epidemiological studies Complex Network Analysis Techniques Complex Systems and Time Series Analysis

Publication details

Journal / source
Entropy
Volume
28
Issue
1
Pages
82–82
Publication date
10 January 2026
Language
EN