%0 Journal Article %T Mathematical Modeling of the Spread of Pollutants in a Closed Water Area %A Bestuzheva, A.N. %A Goncharenko, V.A. %K boundary value problems of mathematical physics, mathematical modeling, diffusing substance, diffusion equation, pollution spot, polluting area, closed water area %J Intellectual Technologies on Transport %D 2023 %N 0 %P 3 %I FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"