OPTIMAL ELLIPTIC REGULARITY AT THE CROSSING OF A MATERIAL INTERFACE AND A NEUMANN BOUNDARY EDGE

摘要

We investigate optimal elliptic regularity of anisotropic div-grad operators in three dimensions at the crossing of a material interface and an edge of the spatial domain on the Neumann boundary part within the scale of Sobolev spaces. Bibliography: 39 titles. Illustration: 8 figures.