In [Približ. Metod. Rešen. Differencial’. Uravnen. 2 (1964), 115 − 134] A. I. Perov generalized the Banach contraction principle by employing matrices instead of contraction constants. In this paper, ...
Journal of Applied Probability, Vol. 19, Essays in Statistical Science (1982), pp. 97-111 (15 pages) For each particle in an aggregate of point particles in the plane, the set of points having it as ...
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