Logarithmic stability estimates for a Robin coefficient in the two dimensional Stokes problem

We are concerned here with identiability, stability properties and estimates for the inverse problem of identifying a Robin coecient on some non accessible part of the boundary from available data on the other part of boundary corresponding to solutions of the Stokes equations. We rst study the identiability of Robin coecient and then we establish a stability estimate of logarithm type using Carleman inequality.