"Ciprian Foias: 15 years later" by Hari Bercovici: Addendum Hari Bercovici Ciprian Foias This article simply re-states the Acknowledgment (in full) as it ought to have appeared in "Ciprian Foias---15 Years Later," by Hari Bercovici, Volume 57 (2008), Number 6. Indiana University Mathematics Journal 2008 text pdf 10.1512/iumj.2008.57.3931 10.1512/iumj.2008.57.3931 en Indiana Univ. Math. J. 57 (2008) 3479 - 3480 state-of-the-art mathematics http://iumj.org/access/