Open diameter maps on suspensions
Keywords:
diameter, open maps, hyperspacesAbstract
It is shown that if $X$ is a metric continuum, which admits an open diameter map, then the suspension of $X$, admits an open diameter map. As a corollary, we have that all spheres admit open diameter maps.
References
W. J. Charatonik, R. P. Roe, and I. U. Tiryaki, Open diameters on graphs, Houston J. Math, 46 (2020), 1-23.
W. J. Charatonik, and A. Samulewicz On size mappings, Rocky Mountain J. Math. 32 (2002), 45-69.
S. B. Nadler, Hyperspaces of sets, Dekker, New York and Basel, 1978.