Abstract:
The singularity of inner general boundary problem for loading mixed equation of third order is investigated. At first, the non-local inner boundary problem with unknown $u(x,0) = \tau (x)$ on the line $y = 0$ is solved.
Then this problem at $y > 0$ reduce to system of integral Voltera's equation of second order and at
$y < 0$ to Dalamber's solution.