@article{ChangQianSchulze2015,
  author    = {Chang, Der-Chen and Qian, Tao and Schulze, Bert-Wolfgang},
  title     = {Corner Boundary Value Problems},
  series = {Complex analysis and operator theory},
  volume    = {9},
  journal   = {Complex analysis and operator theory},
  number    = {5},
  publisher = {Springer},
  address   = {Basel},
  issn      = {1661-8254},
  doi       = {10.1007/s11785-014-0424-9},
  pages     = {1157 -- 1210},
  year      = {2015},
  abstract  = {Boundary value problems on a manifold with smooth boundary are closely related to the edge calculus where the boundary plays the role of an edge. The problem of expressing parametrices of Shapiro-Lopatinskij elliptic boundary value problems for differential operators gives rise to pseudo-differential operators with the transmission property at the boundary. However, there are interesting pseudo-differential operators without the transmission property, for instance, the Dirichlet-to-Neumann operator. In this case the symbols become edge-degenerate under a suitable quantisation, cf. Chang et al. (J Pseudo-Differ Oper Appl 5(2014):69-155, 2014). If the boundary itself has singularities, e.g., conical points or edges, then the symbols are corner-degenerate. In the present paper we study elements of the corresponding corner pseudo-differential calculus.},
  language  = {en}
}
@article{Pirhayati2015,
  author    = {Pirhayati, Mohammad},
  title     = {Boundary symbols in the cone algebra},
  series = {Journal of pseudo-differential operators and applications},
  volume    = {6},
  journal   = {Journal of pseudo-differential operators and applications},
  number    = {3},
  publisher = {Springer},
  address   = {Basel},
  issn      = {1662-9981},
  doi       = {10.1007/s11868-015-0123-y},
  pages     = {307 -- 339},
  year      = {2015},
  abstract  = {Boundary value problems on a smooth manifold X with boundary have the structure of edge problems. Operators A are described in terms of a principal symbolic hierarchy, namely, according to the stratification of X, with the interior and the boundary We focus here on operators with and without the transmission property and establish a new relationship between boundary symbols and operators in the cone calculus transversal to the boundary.},
  language  = {en}
}