Dym, Harry Twenty years after. (English) Zbl 1381.47002 Eisner, Tanja (ed.) et al., Operator theory, function spaces, and applications. International workshop on operator theory and applications, Amsterdam, The Netherlands, July 14–18, 2014. Basel: Birkhäuser/Springer (ISBN 978-3-319-31381-8/hbk; 978-3-319-31383-2/ebook). Operator Theory: Advances and Applications 255, 105-122 (2016). Summary: A glimpse backwards at the twenty plus years since I met and began to collaborate with Dima Arov. Some highlights of the research that began ever so briefly with prediction for multivariate stationary processes, quickly evolved into the study of direct and inverse spectral problems for canonical integral and differential systems and Dirac-Krein systems, and a number of bitangential interpolation and extension problems and circled back to prediction a couple of years ago will be presented.For the entire collection see [Zbl 1356.47001]. MSC: 47-03 History of operator theory 01A70 Biographies, obituaries, personalia, bibliographies 46E22 Hilbert spaces with reproducing kernels (= (proper) functional Hilbert spaces, including de Branges-Rovnyak and other structured spaces) 47B32 Linear operators in reproducing-kernel Hilbert spaces (including de Branges, de Branges-Rovnyak, and other structured spaces) 30E05 Moment problems and interpolation problems in the complex plane 60G25 Prediction theory (aspects of stochastic processes) 42A82 Positive definite functions in one variable harmonic analysis Keywords:canonical systems; de Branges spaces; reproducing kernel Hilbert spaces; inverse problems; extension problems; prediction Biographic References: Arov, Damir Z. PDFBibTeX XMLCite \textit{H. Dym}, Oper. Theory: Adv. Appl. 255, 105--122 (2016; Zbl 1381.47002) Full Text: DOI