Appl Math Optim (2016) 73:391–392
Preface: In Memory of A.V. Balakrishnan
· Igor Kukavica
· Sanjoy Mitter
· Roberto Triggiani
Published online: 11 April 2016
© Springer Science+Business Media New York 2016
A. V. Balakrishnan, a co-founder and ﬁrst, long-time Editor-in-Chief of Applied
Mathematics and Optimization, passed away in Los Angeles on March 17, 2015.
The scientiﬁc community, and in particular our journal’s community, is deeply
saddened and mourns his departure.
The present special issue of AMO intends to commemorate and cherish his mem-
ory while paying tribute to his lasting role and inﬂuence, by offering a selection of
contributions of long-time friends, former advisees, collaborators and associates.
He was a Distinguished Professor Emeritus and Research Professor in the Depart-
ment of Electrical Engineering, University of California, Los Angeles (UCLA), while
holding also for many years an appointment in the Department of Mathematics. He
served in the faculty of UCLA for more than 50 years, during which he also chaired
the Department of System Sciences for two terms.
Throughout his distinguished academic career, he contributed mightily to the areas
of fractional powers of operators and operator semigroups, communication theory,
deterministic and stochastic control theory, all the way to the most recent phase of his
research activities in the theory of continuum aero-elasticity.
During the Cold War, he also served for many years as a diplomatic bridge between
the scientiﬁc communities in the West and in the former Soviet Union. In particular, two