Hyers–Ulam stability of bijective \(\varepsilon \)-isometries between Hausdorff metric spaces of compact convex subsets Yu ZhouZihou ZhangChunyan Liu OriginalPaper 26 October 2020 Pages: 1 - 12
Some Cauchy mean-type mappings for which the arithmetic mean is invariant Qian ZhangBing XuMaoan Han OriginalPaper 29 July 2020 Pages: 13 - 34
Packing 13 circles in an equilateral triangle Antal Joós OriginalPaper 02 September 2020 Pages: 35 - 65
A functional equation of tail-balance for continuous signals in the Condorcet Jury Theorem Steve AlpernBo ChenAdam J. Ostaszewski OriginalPaper Open access 07 September 2020 Pages: 67 - 74
On the balancing property of Matkowski means Tibor Kiss OriginalPaper Open access 20 October 2020 Pages: 75 - 89
A class of functional equations associated with almost periodic functions J. M. SepulcreT. Vidal OriginalPaper 23 June 2020 Pages: 91 - 105
Iterative roots of continuous functions and Hyers–Ulam stability Veerapazham MuruganRajendran Palanivel OriginalPaper 24 July 2020 Pages: 107 - 124
Characterizations of reverse dynamic weighted Hardy-type inequalities with kernels on time scales S. H. SakerM. M. OsmanR. P. Agarwal OriginalPaper 29 October 2020 Pages: 125 - 146
Characterizations of inner product spaces via angular distances and Cauchy–Schwarz inequality Mario KrnićNicuşor Minculete OriginalPaper 30 June 2020 Pages: 147 - 166
Constant diameter and constant width of spherical convex bodies Huhe HanDenghui Wu OriginalPaper 30 July 2020 Pages: 167 - 174
Countable zipper fractal interpolation and some elementary aspects of the associated nonlinear zipper fractal operator K. K. PandeyP. Viswanathan OriginalPaper 01 January 2021 Pages: 175 - 200
