Intersecting Branes, Defect Conformal Field Theories and Tensionless   Strings
  The defect conformal field theory describing intersecting D3-branes at a C^2/Z_k orbifold is used to (de)construct the theory of intersecting M5-branes, as well as M5-branes wrapping the holomorphic curve xy=c. The possibility of a 't Hooft anomaly due to tensionless strings at the intersection is discussed. This note is based on a talk given by Zachary Guralnik at the 35th International Symposium Ahrenshoop on the Theory of Elementary Particles. 
Neil R. Constable, Johanna Erdmenger, Zachary Guralnik and Ingo Kirsch