Basic and adjoint diffusion equations

Bu makolada manbaadan (the source of the debut tarzhima) chika-gangan zaharli modaldarning tarkalish v diffusion zharaeninning arsosi wa teskari (sorbed tarzhima) masalalari karalgan. The solution of the problem of estimating the pollution of the atmosphere and the underlying surface by passive and active impurities, and the mathematical modeling of optimization problems related to environmental protection is related to the solution of the transport and diffusion equation and optimization problems.