On the Ptolemy constant of Lorentz sequence spaces and their duals
On the Ptolemy constant of Lorentz sequence spaces and their duals
The Ptolemy constant of two-dimensional Lorentz sequence spaces is computed in this paper.On the way, we also calculate the Ptolemy constant in the dual space of two-dimensional Lorentz sequence spaces in the case of q = 1 and q 2.Moreover, we determine the Ptolemy constant of absolute normalized norms under …