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Nearly Open, According to a Subset, Linear Maps Which are Open
Published online by Cambridge University Press: 20 November 2018
Abstract
For a linear map we introduce two notions of being open according to a subset. With these two definitions, we characterize the linear, nearly open mappings which are open. Thus we generalize a famous theorem of V. Pták.
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- Research Article
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- Copyright © Canadian Mathematical Society 1984
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