2 papers
math.CA2021
Means in money exchange operations
Jacek Bojarski, Janusz Matkowski
It is observed that in some money exchange operations, the applied -variable mean should be self reciprocally-conjugate, i.e. it should satisfy the equality \[ M\left( x_{1…
math.CO2016
Nearly neighbourly families of standard boxes
Jacek Bojarski, Andrzej P. Kisielewicz, Krzysztof Przesławski
It is demonstrated that each nearly neighbourly family of standard boxes in has at most 12 elements. A combinatorial classification of all such families that have ex…