Spectral asymptotics for magnetic Schr\"odinger operators in domains   with corners
  This paper is on magnetic Schrodinger operators in two dimensional domains with corners. Semiclassical formulas are obtained for the sum and number of eigenvalues. The obtained results extend former formulas for smooth domains in \cite{Fr, FK} to piecewise smooth domains. 
Ayman Kachmar, Abdallah Khochman
math.SP