@article{McCluskey_Watson_2002, title={Minimal TUD spaces}, volume={3}, url={https://polipapers.upv.es/index.php/AGT/article/view/2112}, DOI={10.4995/agt.2002.2112}, abstractNote={<p>A topological space is T<sub>UD</sub> if the derived set of each point is the union of disjoint closed sets. We show that there is a minimal T<sub>UD</sub> space which is not just the Alexandroff topology on a linear order. Indeed the structure of the underlying partial order of a minimal T<sub>UD</sub> space can be quite complex. This contrasts sharply with the known results on minimality for weak separation axioms.</p>}, number={1}, journal={Applied General Topology}, author={McCluskey, Aisling E. and Watson, W. S.}, year={2002}, month={Apr.}, pages={55–64} }