• Isbell convexity in fuzzy quasi-metric spaces 

      Malama, Mwansa (The University of Zambia, 2021)
      The concept of hyperconvexity in metric spaces was introduced by Aronszajn and Panichpakdi in 1956. This concept was then generalised to the framework of quasi-metric spaces by John Isbell in 1964, which he called Isbell ...