Paco bearing current

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Paco Axel Lagerstrom (born February 24, 1914 in Oskarshamn , † February 16, 1989 in Pasadena , California ) was a Swedish - American applied mathematician , known for contributions to aerodynamics .

Life

Lagerstrom studied mathematics at Stockholm University with a candidate degree in 1935 and a licentiate degree in 1939, and received his doctorate from Princeton University in 1942 under Salomon Bochner ( Measure and Integral in partially ordered spaces ). He was an instructor at Princeton from 1941 to 1944 and then a research engineer at Douglas Aircraft , where he dealt with aerodynamic problems. In 1946 Hans Liepmann brought him to the Guggenheim Aeronautical Laboratory (Galcit) at Caltech . In 1952 he became professor for aeronautics and in 1967 professor for applied mathematics at Caltech.

In 1960/61 he was a Guggenheim visiting professor at the Sorbonne . He was also a consultant to TRW Inc. At Caltech in the 1940s he developed asymptotic and perturbation-theoretical developments of the solutions of the Navier-Stokes equation for various borderline cases, especially with his doctoral students Julian Cole and Leon Trilling, specifically to justify the boundary layer theory . Lagerstrom headed a group of theorists at Caltech who at that time had a leading position in the development of mathematical methods for the investigation of transonic and supersonic flow, an important area of ​​applied mathematics in the jet and rocket age that was beginning at that time.

His doctoral students include Julian Cole, Athanassios S. Fokas , Theodore Yao-Tsu Wu , Leon Trilling, Pieter Wesseling , Saul Kaplun .

Fonts (selection)

  • Fluid Mechanics and Singular Perturbations. A Collection of Papers . Academic Press, New York 1967.
  • Laminar Flow Theory . University Press, Princeton, NJ 1996, ISBN 0-691-02598-3 .
  • Matched Asymptotic Expansions. Ideas And Techniques (Applied Mathematical Sciences; Vol. 76). Springer Verlag, Berlin 1988, ISBN 3-540-96811-3 .

literature

  • Julian Cole : The development of perturbation theory at Galcit . In: Society for Industrial and Applied Mathematics (Ed.): SIAM Review , Vol. 36 (1994), pp. 425-430, ISSN  0036-1445

Web links

Individual evidence

  1. ↑ Date of Birth and Early Career Dates, according to Cecil Cook (Editor) Who´s Who in American Education , Volume 12, 1946
  2. ^ Mathematics Genealogy Project
  3. ↑ There he was the dominant personality of Karman for a long time; But he gave up the post of director because of numerous consulting activities in industry and for the Air Force in 1945. His successor as director was Clark Millikan, a son of Robert Andrews Millikan
personal data
SURNAME Camp current, Paco
ALTERNATIVE NAMES Lagerstrom, Paco Axel
BRIEF DESCRIPTION Swedish-American mathematician
DATE OF BIRTH February 24, 1914
PLACE OF BIRTH Oskarshamn
DATE OF DEATH February 16, 1989
Place of death Pasadena , California