Nitsche type mortaring for some elliptic problem with corner singularities
The Nitsche type mortaring is analysed on quite general triangulations. For meshes with and without grading, basic inequalities, stability and boundedness of the linear forms as well as error estimates are proved. For an appropriate choice of some mesh grading parameter, the rate of convergence is proved to be the same as for regular solutions on quasi-uniform meshes.
scientific article; zbMATH DE number 1798885