TY - INPR A1 - Schulze, Bert-Wolfgang T1 - Crack theory with singularties at the boundary N2 - We investigate crack problems, where the crack boundary has conical singularities. Elliptic operators with two-sided elliptc boundary conditions on the plus and minus sides of the crack will be interpreted as elements of a corner algebra of boundary value problems. The corresponding operators will be completed by extra edge conditions on the crack boundary to Fredholm operators in corner Sobolev spaces with double weights, and there are parametrices within the calculus. T3 - Preprint - (2003) 14 Y1 - 2008 UR - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/2455 UR - https://nbn-resolving.org/urn:nbn:de:kobv:517-opus-26600 ER -