TY JOUR TI MATHEMATICAL MODELING OF EPIDEMIC DYNAMICS AND DISEASE SPREAD USING THE SIR MODEL KW numerical analysis KW epidemic modeling KW SIR model KW disease dynamics KW peak incidence KW infectious diseases KW Euler’s method KW susceptible and infected KW epidemic management JO MOSCOW ECONOMIC JOURNAL AU Sidorov, A.A. AU Astaf'ev, R.U. AU Gorshunova, T.A. AU Morozova, T.A. PY 2025 IS 10 PB Electronic science