Flimsy Spaces

R. Khanfir, B.F. Seguin, ArXiv:2511.17745 (2025).

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We study $n$-flimsy spaces, which are the topological spaces that remain connected when removing fewer than $n$ points but become disconnected when removing exactly $n$ points. We show that no such space exists for $n \geq 3$, and that the compact $2$-flimsy spaces are precisely the dense and order-complete cyclically ordered sets equipped with their order topology. Furthermore, we examine variants of the definition obtained by replacing connectedness by path-connectedness, where paths are either parametrized by $[0,1]$ or by arbitrary compact linear continua.
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arXiv:2511.17745
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Khanfir R, Seguin BF. Flimsy Spaces. arXiv:251117745. Published online 2025.
Khanfir, R., & Seguin, B. F. (2025). Flimsy Spaces. In arXiv:2511.17745.
@article{Khanfir_Seguin_2025, title={Flimsy Spaces}, journal={arXiv:2511.17745}, author={Khanfir, Robin and Seguin, Beranger Fabrice}, year={2025} }
Khanfir, Robin, and Beranger Fabrice Seguin. “Flimsy Spaces.” ArXiv:2511.17745, 2025.
R. Khanfir and B. F. Seguin, “Flimsy Spaces,” arXiv:2511.17745. 2025.
Khanfir, Robin, and Beranger Fabrice Seguin. “Flimsy Spaces.” ArXiv:2511.17745, 2025.

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