3 papers
math-ph2022
States of finite effect algebras
G. Bińczak, J. Kaleta, A. Zembrzuski
In this paper we characterize finite effect algebras which have a state. We construct two matrices and assigned to a finite effect algebra and show that if has a st…
math.RA2021
Joins and meets in effect algebras
Grzegorz Binczak, Joanna Kaleta, Andrzej Zembrzuski
We know that each effect algebra is isomorphic to for some -test spaces .We describe when and exists for $x,y\in{\cal E}…
math-ph2015
Sharp and principal elements in effect algebras
Grzegorz Bińczak, Joanna Kaleta
In this paper we characterize the effect algebras whose sharp and principal elements coincide. We also give examples of two non-isomorphic effect algebras having the same universum…