In Between $T_1$ and $T_2$, Albert Wilansky mentioned in 6. that it was not known whether or not every locally compact US space is $T_2$.
Is this matter still an open problem?
In Between $T_1$ and $T_2$, Albert Wilansky mentioned in 6. that it was not known whether or not every locally compact US space is $T_2$.
Is this matter still an open problem?