Sergei Stepanov

Aug 18, 2023 | news.err.ee | Rene Kundla |Sergei Stepanov |Sergei Mihhailov

The newly-formed coalition holds 18 of the 31 seats on Narva City Council. Both the Narva Heaks faction, which from Friday will be renamed KF Narva Heaks faction, and the Respekt faction have 9 seats each. Four members of the Narva Heaks faction stood as candidates in the last local elections as part of the Elagu Narva coalition, which was chaired by the current leader of the faction, Alexei Jevgrafov.

Aug 4, 2023 | mdpi.com | Maria Vasilyeva |Sergei Stepanov |Stephen Henry |Alexey Sadovski

Abstract:We consider the multispecies model described by a coupled system of diffusion–reaction equations, where the coupling and nonlinearity are given in the reaction part. We construct a semi-discrete form using a finite volume approximation by space. The fully implicit scheme is used for approximation by time, which leads to solving the coupled nonlinear system of equations at each time step.