[Development of stationary dissipative structures in a unidimensional Turing--Prigogine model].

An approxmimate formula is obtained for critical value of the parameter which determines the appearance of stationary dissipative structure in Turing--Prigogine linear model. This formula is valid when the length of the segment in which the space coordinate varies is sufficiently large. The estimation is obtained which shows the length of the segment under which the effect of boundary condition on the behaviour of the solution in the middle of the segment is negligible.