Bloch wave – MoM method the wave numbers in any of the 3 periodic coordinate directions. This can happen for example when the free space wavelength exactly equals the lattice spacing. This is a statistically rare occurrence in computational practice and corresponds to a propagation anomaly similar to a Wood's reflection anomaly for gratings. To compute bands of the crystal (i.e. "k"-"k" diagrams), successive values of frequency ("k") are tried - in conjunction with pre-selected values of propagation constant ("k") and propagation direction (θ & φ) - until a combination is found which drives the determinant of the matrix to zero. Equation (4.2) has been
The Crests was born and where he began his music career, introduced an Extension of Remarks in the House of Representatives. This posthumous honor is now a permanent part of the Congressional Record. The Extension of Remarks includes the original members of The Crests. On November 12, 2013, J.T. Carter was honored by the Pennsylvania State House, Speaker of the House Sam Smith, and PA State Representative Rosemary M Brown, for his lifetime in the music industry and for being the first African American to form an interracial vocal group in the America. Carter was officially recognized on the state house floor.