Addendum to ``Ideal Rothberger spaces" [Hacet. J. Math. Stat. 47(1), 69-75, 2018]

Year 2021, Volume: 50 Issue: 1, 144 - 145, 04.02.2021

Manoj Bhardwaj

https://doi.org/10.15672/hujms.674543

Abstract

In this addendum we give an example to show that there is an error in Theorem 3.7 in ``Ideal Rothberger spaces" [Hacet. J. Math. Stat. 47(1), 69-75, 2018]. We also prove the theorem with different hypothesis.

Keywords

Rothberger modulo ideal spaces, perfect maps, Ideal Rothberger spaces

References

• [1] R. Engelking, General Topology, Revised and completed edition, Heldermann Verlag Berlin, 1989.
• [2] A. Güldürdek, Ideal Rothberger spaces, Hacet. J. Math. Stat. 47 (1), 69–75, 2018.
• [3] M. Sakai and M. Scheepers, Combinatorics of open covers, in: K.P. Hart, J. van Mill, P. Simon (eds.), Recent Progress in General Topology III, pp. 751–799, Atlantis Press, Paris, 2014.