TY - JOUR T1 - Critical Angles of the Nyström Method for Double Layer Potential Equation JO - East Asian Journal on Applied Mathematics VL - 1 SP - 194 EP - 210 PY - 2018 DA - 2018/02 SN - 8 DO - http://doi.org/10.4208/eajam.210517.071217a UR - https://global-sci.org/intro/article_detail/eajam/10892.html KW - Double layer potential equation, Nyström method, stability, critical angles. AB -

The Nyström method for double layer potential equations on simple closed piecewise smooth contours is stable if and only if certain operators associated with the opening angles of the corners are invertible. Numerical experiments show that there are opening angles which cause the instability of the method.