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Richard James Duffin (1909 — Pittsburgh, 29 de outubro de 1996) foi um físico estadunidense.
, Richard James Duffin (1909 – October 29, 1996) was an American physicist, known for his contributions to electrical transmission theory and to the development of geometric programming and other areas within operations research.
, Richard James Duffin (* 13. Oktober 1909 i … Richard James Duffin (* 13. Oktober 1909 in Chicago; † 29. Oktober 1996 in Pittsburgh) war ein US-amerikanischer Physiker und angewandter Mathematiker. Duffin studierte Physik und Elektrotechnik (Bachelor-Abschluss) an der University of Illinois at Urbana-Champaign, wo er 1935 bei Harold Mott-Smith und David Bourgin in Physik über thermomagnetische und galvanomagnetische Effekte promovierte. Danach war er Lecturer an der Purdue University und der University of Illinois. Im Zweiten Weltkrieg war er am Carnegie Institution in Washington, D.C., wo er für die US-Marine unter anderem über Minensuche forschte. Von 1946 bis 1988 war er Professor für Mathematik an der Carnegie Mellon University in Pittsburgh. Außerdem arbeitete er als Berater für den Elektrokonzern Westinghouse. Duffin befasste sich unter anderem mit der Theorie elektrischer Netzwerke und Operations Research. Zu seinen Studenten zählt Raoul Bott, mit dem er über Analyse elektrischer Netzwerke arbeitete (Duffin-Bott-Synthese, Duffin-Bott-Inverse). 1949 widerlegte er die Vermutung von Hadamard und Boggio. 1972 wurde er in die National Academy of Sciences gewählt, 1974 in die American Academy of Arts and Sciences. 1982 erhielt er den John-von-Neumann-Theorie-Preis.elt er den John-von-Neumann-Theorie-Preis.
, Richard James Duffin (1909-1996) est un physicien et mathématicien américain, connu pour ses contributions à la théorie de la transmission électrique et au développement de la (en) et d'autres domaines de la recherche opérationnelle.
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Richard James Duffin (1909 – October 29, 1996) was an American physicist, known for his contributions to electrical transmission theory and to the development of geometric programming and other areas within operations research.
, Richard James Duffin (1909 — Pittsburgh, 29 de outubro de 1996) foi um físico estadunidense.
, Richard James Duffin (* 13. Oktober 1909 i … Richard James Duffin (* 13. Oktober 1909 in Chicago; † 29. Oktober 1996 in Pittsburgh) war ein US-amerikanischer Physiker und angewandter Mathematiker. Duffin studierte Physik und Elektrotechnik (Bachelor-Abschluss) an der University of Illinois at Urbana-Champaign, wo er 1935 bei Harold Mott-Smith und David Bourgin in Physik über thermomagnetische und galvanomagnetische Effekte promovierte. Danach war er Lecturer an der Purdue University und der University of Illinois. Im Zweiten Weltkrieg war er am Carnegie Institution in Washington, D.C., wo er für die US-Marine unter anderem über Minensuche forschte. Von 1946 bis 1988 war er Professor für Mathematik an der Carnegie Mellon University in Pittsburgh. Außerdem arbeitete er als Berater für den Elektrokonzern Westinghouse.rater für den Elektrokonzern Westinghouse.
, Richard James Duffin (1909-1996) est un physicien et mathématicien américain, connu pour ses contributions à la théorie de la transmission électrique et au développement de la (en) et d'autres domaines de la recherche opérationnelle.
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Richard Duffin
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