Turkish Journal of Mathematics
Abstract
Under $V=L$ we construct coanalytic topological subgroups of reals, demonstrating that even for definable groups of reals, selection principles may differ.
DOI
10.3906/mat-1612-84
Keywords
Coanalytic, Menger, Hurewicz, Rothberger, $\gamma$-property, $\sigma$-compact, $V=L$, productively Lindelöf, topological group
First Page
12
Last Page
20
Recommended Citation
TOKGÖZ, S (2018). A coanalytic Menger group that is not $\sigma$-compact. Turkish Journal of Mathematics 42 (1): 12-20. https://doi.org/10.3906/mat-1612-84
