Ciprian Foias: photo Hari Bercovici Ciprian Foiasphoto Indiana University Mathematics Journal 2008 text pdf 10.1512/iumj.2008.57.3885 10.1512/iumj.2008.57.3885 en Indiana Univ. Math. J. 57 (2008) 0 - 0 state-of-the-art mathematics http://iumj.org/access/