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This letter deals with the physical interpretation of the 'transitional amplitude' AE, a parameter of percolation theory determined by the derivative mean size of clusters s: AE = x(ds/dx) +s; AE = s( 1 + LR) = where E = xx,, and LR is the average number of red bonds in an incipient infinite cluster.

SLarge numerical aperture telescope with nonlinear optical correction for distortions, designed for the remote seff-luminous object imaging, was realized in experiment and investigated. Dynamic hologram, recorded in optically addressed liquid crystal spatial light modulator, was used as the corrector. Nearly diffraction limited performance of the system was demonstrated.

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