Solved and unsolved problems
Michael Th. Rassias
University of Zürich, Switzerland
Cite this article
Michael Th. Rassias, Solved and unsolved problems. Eur. Math. Soc. Mag. 121 (2021), pp. 58–67
DOI 10.4171/MAG/38Michael Th. Rassias, Solved and unsolved problems. Eur. Math. Soc. Mag. 121 (2021), pp. 58–67
DOI 10.4171/MAG/38