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arXiv · 1803.08744

Restricting open surjections

Jesus A. Jaramillo·Enrico Le Donne·Tapio Rajala
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Abstract

We show that any continuous open surjection from a complete metric space to another metric space can be restricted to a surjection for which the domain has the same density character as the target. This improves a recent result of Aron, Jaramillo and Le Donne.

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Jesus A. Jaramillo, Enrico Le Donne, Tapio Rajala. 2018-03-23. Restricting open surjections. https://arxiv.org/abs/1803.08744

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