SOLUTION OF A PROBLEM CONCERNING THE DISTRIBUTION OF GAS MOLECULES IN A LAYER WITH MIRROR BOUNDARY CONDITIONS A. V. Latyshev and G. V. Slobodskoi UDC 572.33 In the present work we investigate the distribution of gas molecules in a layer filled with a rarefied gas. To solve the problem, a Boltzmann model nonstationary equation is used. The distribution function is found in the form of an expansion in generalized eigenfunctions of the corresponding characteristic equation. JEPTER7492019992 JEPTER749202