eng Ansari Education and Research Society Journal of Ultra Scientist of Physical Sciences August 2009 21 2 491 494 jusps-A 1215 article New Characterizations of Semi-T2, Semi-T1, and Semi-T0 Spaces Charles Dorsett 1 Department of Mathematics, Texas A & M University, Commerce, Commerce, Texas 75420 (USA) <p>In this paper it is shown that semi-T<sub>i</sub> reduces to T<sub>i</sub>, i = 0, 1, 2, when an appropriate change of topology is invoked.</p> https://www.ultrascientist.org/paper/1215/ Characterizations Semi-T2 Semi-T0 Spaces