Wave Front Sets of the Buldyrev Head Wave and Whispering Gallery Waves

Resumo

The diffraction of waves, produced by a point source, on an inhomogeneous half-plane is considered. The square of the wave number inside an inhomogeneous region is assumed to decrease linearly with the distance from the division boundary. Using the results obtained earlier, the Buldyrev head wave and whispering gallery waves are analyzed.