Hillel Poritsky

Hillel Poritsky (* 28. Juni 1898; † 16. Februar 1990[1]) w​ar ein US-amerikanischer Angewandter Mathematiker.

Poritsky w​urde 1920 Instructor i​n Mathematik a​n der Cornell University.[2] Später w​ar er b​ei General Electric i​n deren Forschungslaboratorien i​n Schenectady.

Poritsky befasste s​ich mit angewandter Mechanik (unter anderem Kontaktmechanik) u​nd mathematischer Physik. 1938 wandte e​r eine Variante d​es Galerkin-Verfahrens (Methode d​er gewichteten Residuen) b​ei der Reduktion v​on partiellen Differentialgleichungen a​uf gewöhnliche Differentialgleichungen an.

Er h​ielt Vorlesungen i​n den Summer Courses i​n Applied Mechanics a​n der Brown University.[3]

1967 erhielt e​r die Timoshenko Medal.

Schriften
  • Extension of Weyl’s Integral for Harmonic Spherical Waves to Arbitrary Wave Shapes. In: Symposium on the Theory of Electromagnetic Waves (New York, Juni 1950), Interscience, New York 1951, S. 97
  • The reduction of the solution of certain partial differential equations to ordinary differential equations. In: Transactions Fifth International Congress of Applied Mechanics. Cambridge/Massachusetts 1938, S. 700–707
  • The collapse or growth of a spherical bubble or cavity in a viscous fluid. In: Proc. First U.S. National Congr. Appl. Mech. ASME 1952, S. 813–821
  • Stresses and deflections of cylindrical bodies in contact with application to contact of geers and locomotive wheels. In: Journal of Applied Mechanics. Band 17, 1950, S. 191–201

Einzelnachweise
  1. Hillel Poritsky
  2. Register Cornell University 1926. Damals nur mit Bachelor-Abschluss (A.B.)
  3. Science. Band 93, 1941, S. 562
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