# A posteriori error estimates for the generalized Stokes problem

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The paper is concerned with a generalized version of the stationary Oseen problem, which often arises in semidiscrete approximation methods used for the quantitative analysis of Navier--Stokes equations. We derive a fully computable functional defined for admissible velocity, stress, and...

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Summary. In this article, we study the incompressible Navierâ€“Stokes equations in â„[sup 3] . The non linear integral equation satisfied by the Fourier transform of the Laplacian of the velocity field can be interpreted in terms of a branching process and a composition rule along the...