Harry Dym (; January 26, 1938 – July 18, 2024) was an Israeli-born American

mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, mathematical structure, structure, space, Mathematica ...

at the

Weizmann Institute of Science The Weizmann Institute of Science ( ''Machon Weizmann LeMada'') is a Public university, public research university in Rehovot, Israel, established in 1934, fourteen years before the State of Israel was founded. Unlike other List of Israeli uni ...

, Israel. Dym's research interests included

operator theory In mathematics, operator theory is the study of linear operators on function spaces, beginning with differential operators and integral operators. The operators may be presented abstractly by their characteristics, such as bounded linear operato ...

interpolation In the mathematics, mathematical field of numerical analysis, interpolation is a type of estimation, a method of constructing (finding) new data points based on the range of a discrete set of known data points. In engineering and science, one ...

theory, and

inverse problem An inverse problem in science is the process of calculating from a set of observations the causal factors that produced them: for example, calculating an image in X-ray computed tomography, sound source reconstruction, source reconstruction in ac ...

s. Dym earned his Ph.D. in 1965 from the

Massachusetts Institute of Technology The Massachusetts Institute of Technology (MIT) is a Private university, private research university in Cambridge, Massachusetts, United States. Established in 1861, MIT has played a significant role in the development of many areas of moder ...

, under the supervision of

Henry McKean Henry P. McKean, Jr. (December 10, 1930 – April 20, 2024) was an American mathematician at the Courant Institute in New York University. He worked in various areas of analysis. He obtained his PhD in 1955 from Princeton University under William ...

. He introduced the

Dym equation In mathematics, and in particular in the theory of solitons, the Dym equation (HD) is the third-order partial differential equation :u_t = u^3u_.\, It is often written in the equivalent form for some function v of one space variable and time : v ...

, which bears his name. Dym died on July 18, 2024, at the age of 86.

Works

*as editor with Bernd Fritzsche, Victor Katsnelson, and Bernd Kirstein: ''Topics in Interpolation Theory'', Birkhäuser 1997 *''Linear Algebra in Action'', American Mathematical Society 2007 *with H. P. McKean: ''Fourier Series and Integrals'', Academic Press 1974 *with H. P. McKean: ''Gaussian processes, function theory, and the inverse spectral problem'', Academic Press 1976, Dover 2008
''

J

contractive matrix functions, reproducing kernel Hilbert spaces and interpolation''
AMS 1989 *as editor: ''Topics in Analysis and Operator Theory'', Birkhäuser 1989 *with Vladimir Bolotnikov: ''On boundary interpolation for matrix valued Schur functions'', AMS 2006 *with Damir Z. Arov: ''

J

-contractive matrix valued functions and related topics'', Cambridge University Press 2008

Sources

*Daniel Alpay,

Israel Gohberg Israel Gohberg (; ; 23 August 1928 – 12 October 2009) was a Bessarabian-born Soviet and Israeli mathematician, most known for his work in operator theory and functional analysis, in particular linear operators and integral equations. Biograph ...

, Victor Vinnikov (Herausgeber) ''Interpolation theory, systems theory, and related topics: the Harry Dym anniversary volume'', Birkhäuser 2002.

References

External links

HomepageHarry Dym's 85th birthday Zoom party
1938 births Israeli mathematicians Massachusetts Institute of Technology alumni Academic staff of Weizmann Institute of Science {{asia-mathematician-stub 2024 deaths