We study the stability for the direct acoustic scattering problem with sound-hard scatterers with minimal regularity assumptions on the scatterers. The main tool we use for this purpose is the convergence in the sense of Mosco.\ud\udWe obtain uniform decay estimates for scattered fields and we investigate how a sound-hard screen may be approximated by thin sound-hard obstacles.
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机译：我们研究具有声硬散射体的直接声散射问题的稳定性，并假设散射具有最小规律性。我们用于此目的的主要工具是Mosco意义上的收敛。\ ud \ ud我们获得了散射场的统一衰减估计，并且我们研究了如何通过薄的声硬障碍物来近似一个声硬屏幕。
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