Abstract
The gravitational angular fluctuations of light rays produced by linear density perturbations are investigated in the Einstein-de Sitter model. It is found that, owing to the random-walk process aroused by the perturbations, the mean-square angular fluctuations of individual light rays and the mean-square relative angular fluctuations of two neighboring rays increase as they propagate. Their behavior is shown in cases when the index $n$ of the initial spectrum of density perturbations is equal to 1, 0, and -1.
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