  The diffraction production of many hadron showers separated by large rapidity
gaps, when calculated within the standard pomeron approach, lead to cross
sections rising much faster than Froissart-Martin bound. This is the point of
Finkelstein-Kajantie problem. We consider the unitarization procedure based on
Dyson-Schwinger equations with input froissaron propagators and 3-froissaron
vertex (3f-vertex) depending on angular momenta of froissarons in it. The
developed diffraction production model allows to resolve Finkelstein-Kajantie
problem.
