Positivity (2011) 15:539–551
Charalambos D. Aliprantis (1946–2009)
A. W. Wickstead
Received: 6 September 2010 / Accepted: 30 September 2010
© Springer Basel AG 2010
Charalambos D. Aliprantis, or “Roko” as he was almost universally known, was born
in the village of Lakithra on the Greek island of Cephalonia on May 12, 1946. His
parents were Dr. Dionysios and Sofronia Aliprantis who had two other boys, Christo-
pher and Spyros. Roko grew up during a very turbulent time in modern Greek history,
living through hunger, disease, civil war, earthquake and a dictatorship. Throughout
his life Roko remained devoted to his family and his Greek heritage, spending as many
summer vacations on Cephalonia as he could manage.
After elementary and high school education on the island of Cephalonia he went
to study mathematics at the University of Athens where the professor that he was
most inﬂuenced by was Demetrios Kappos, a student of Constantine Carathéodory.
Roko was proud to consider himself an academic grandchild of Carathéodory who,
although from a very mixed geographical background, was very much a Greek. Roko
obtained a Diploma in Mathematics (Summa cum Laude) from the University of Ath-
ens in December 1968 then spent the Spring Semester of 1969 working as a Teaching
Assistant at the University of Athens.
Roko then moved to the USA where he entered California Institute of Technol-
ogy (Caltech), working as a Graduate Teaching Assistant throughout his studies, and
obtained a Master of Science degree in June 1971. He then started working with
Georgiadou, in , does not list Kappos as a student of Carathéodory, but does mention that Kappos
visited him in Munich and that Kappos dedicated his 1960 book on the inﬁnitesimal calculus to “the holy
shadow of [his] ever memorable teacher Constantine Carathéodory”. The Mathematics Genealogy Project
(http://www.genealogy.math.ndsu.nodak.edu/id.php?id=13796), on the other hand, does list Kappos as
a student of Carathéodory but gives no details of when or where the thesis was written nor its title.
A. W. Wickstead (
Pure Mathematics Research Centre, Queens University Belfast, Belfast, Northern Ireland