In this chapter, the Dirichlet problem for the wave equation is studied in a domain in ℝ3 with a cavity of small diameter ε. We also discuss the wave equation in a domain with the boundary smoothed in a small neighbourhood of a conical point.
|Title of host publication||Operator Theory|
|Subtitle of host publication||Advances and Applications|
|Number of pages||33|
|State||Published - 2021|
|Name||Operator Theory: Advances and Applications|
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