Geodesic

Geometry of Lagrangian manifolds and the canonical Maslov operator in complex phase space
p. 5-39
Asymptotic of the solution of Cauchy's problem for equations with complex characteristics
p. 41-136
$T$-product of hypoelliptic operators
p. 137-197
Propagation of shock waves in an isentropic, nonviscous gas
p. 199-271
Propagation of a~shock wave in an isentropic gas with small viscosity
p. 273-308