Douglas' + Sebestyén's lemmas = a tool for solving an operator equation problem
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DOI: 10.1016/j.jmaa.2019.123599
Abstract: Abstract The existence of a positive solution of the equation A X B = C was considered in different settings but only under additional conditions including that of regularity, as well as under certain range… read more here.
Keywords: positive solution; lemmas tool; operator equation; sebesty lemmas ... See more keywords