Translational invariance formula Dupuis and height determination period of seeps

Proved: the independence of the value of filtration flow rate on the move with the free surface of the shift operator U₁:=exp(I d/dx) convergence of the solutions to the depression of the curve to the solution Dupuis at  l→+0 (long jumper, long streams) uniformly along the stream; convergence Δ+0 for extending the bridge, uniform depth of filling the tailrace.