TY - JOUR T1 - Interface Problems for Elliptic Systems AU - Jinbiao Wu JO - Journal of Partial Differential Equations VL - 4 SP - 313 EP - 323 PY - 1999 DA - 1999/12 SN - 12 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/jpde/5544.html KW - Interface problem KW - elasticity problem KW - elliptic system AB - Interface problems for elliptic systems of second order partial differential equations are studied. The main result is that the solution in the neighborhood of the singular point can be divided into two parts one of which is a solution to the homogeneous system with constant coefficients, and the other one possesses higher regularity.