Karel deLeeuw

Karel deLeeuw, or de Leeuw ((1930-02-20)February 20, 1930 – (1978-08-18)August 18, 1978), was a mathematics professor at Stanford University, specializing in harmonic analysis and functional analysis.

Karel deLeeuw
Born(1930-02-20)February 20, 1930
Chicago, Illinois
DiedAugust 18, 1978(1978-08-18) (aged 48)
Stanford, California
NationalityAmerican
Other namesKarel de Leeuw
Alma materPrinceton University
Illinois Institute of Technology
Known forChoquet–Bishop–deLeeuw theorem
Spouse(s)Sita deLeeuw
Scientific career
FieldsMathematics
InstitutionsStanford University
Doctoral advisorEmil Artin
Doctoral studentsAlan H. Schoenfeld (de)

Life and career

Born in Chicago, Illinois, he attended the Illinois Institute of Technology and the University of Chicago, earning a B.S. degree in 1950. He stayed at Chicago to earn an M.S. degree in mathematics in 1951, then went to Princeton University, where he obtained a Ph.D. degree in 1954.[1] His thesis, titled "The relative cohomology structure of formations", was written under the direction of Emil Artin.[2]

After first teaching mathematics at Dartmouth College and the University of Wisconsin–Madison, he joined the Stanford University faculty[3] in 1957, becoming a full professor in 1966. During sabbaticals and leaves he also spent time at the Institute for Advanced Study and at Churchill College, Cambridge (where he was a Fulbright Fellow). He was also a Member-at-Large of the Council of the American Mathematical Society.[1]

Death and legacy

DeLeeuw was murdered by Theodore Streleski, a Stanford doctoral student for 19 years, whom he briefly advised.[4] DeLeeuw's widow Sita deLeeuw was critical of media coverage of the crime, saying, "The media, in their eagerness to give Streleski a forum, become themselves accomplices in the murder—giving Streleski what he wanted in the first place."[5]

A memorial lecture series was established in 1978 by the Stanford Department of Mathematics to honor deLeeuw's memory.[6][7]

Selected publications
  • deLeeuw, Karel (1966). "Calculus". Harcourt, Brace. Cite journal requires |journal= (help)[8]
  • Rudin, Walter; de Leeuw, Karel (1958). "Extreme points and extremum problems in H1". Pacific Journal of Mathematics. 8 (3): 467–485. doi:10.2140/pjm.1958.8.467.
  • de Leeuw, Karel (1965). "On Lp multipliers". Annals of Mathematics. Second Series. The Annals of Mathematics, Vol. 81, No. 2. 81 (2): 364–379. doi:10.2307/1970621. JSTOR 1970621.
  • de Leeuw, Karel (1975). "An harmonic analysis for operators. I. Formal properties". Illinois J. Math. 19 (4): 593–606. doi:10.1215/ijm/1256050668. ISSN 0019-2082.
  • de Leeuw, Karel (1977). "An harmonic analysis for operators. II. Operators on Hilbert space and analytic operators". Illinois J. Math. 21 (1): 164–175. doi:10.1215/ijm/1256049511. ISSN 0019-2082.
  • de Leeuw, Karel; Yitzhak Katznelson; Jean-Pierre Kahane (1977). "Sur les coefficients de Fourier des fonctions continues". Comptes Rendus de l'Académie des Sciences, Série A et B. 285 (16): A1001–A1003. ISSN 0997-4482.

References
  1. "Memorial resolution: Karel deLeeuw (1930 – 1978)" (PDF). Stanford University. Archived from the original (PDF) on February 5, 2012. Retrieved May 7, 2013.
  2. https://www.genealogy.math.ndsu.nodak.edu/id.php?id=14684
  3. Duren, Peter L., ed. (1989). A century of mathematics in America: Part II. American Mathematical Society. p. 270. ISBN 0-8218-0130-9. Retrieved May 7, 2013.
  4. "American Notes Crime - Unrepentant about Murder". TIME Magazine. September 23, 1985.
  5. "Widow of Slain Professor Speaks Out". Los Angeles Times. October 5, 1985.
  6. "Karel deLeeuw Memorial Lecture: "On the Mathematics of Genomic Imprinting"" (PDF). Stanford University. November 13, 2008. Retrieved May 7, 2013.
  7. "Karel deLeeuw Memorial Lecture: "Archimedes' Hydrostatics and the Birth of Mathematical Physics"" (PDF). Stanford University. June 6, 2012. Archived from the original (PDF) on 2012-07-14. Retrieved May 7, 2013.
  8. Dorner, George C. (1968-01-01). "Review of Calculus". The Mathematics Teacher. 61 (8): 804–805. JSTOR 27958003.
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