SKEW SHOCK WAVE ON THE INTERFACE BETWEEN TWO POLYTROPIC GASES S. K. Andilevko UDC 534.2 Break decay occurring in emergence of a skew shock wave on the surface separating polytropic gases at the side of the less dense of them is calculated. Both regular and irregular regimes of interaction are considered and the parameters of the gases for different reflection and refraction regimes are determined. JEPTER74920199917 JEPTER7492017