Group of 3 offprints, from the library of Theodore von Karman

1928. Includes the following: (1) Zum Phragmen-Lindelofschen Ideenkreis. Offprint from "Abhandlung aus dem Mathematischen Seminar der Hamburgischen Universitat," VI (1928). 263-264pp. Original printed wrappers. (2) Zur Theorie der Flussigkeitsstrahlen. Offprint from "Mathematische Zeitschrift," 31 (1929). 424-433pp. Original printed wrappers. (3) Les vibrations et le calcul des variations. Offprint from "Portugaliae mathematica," 2 (1941). 20pp. Original printed wrappers. W.'s presentation inscription to von Karman on the front wrapper. "Weinstein's research (truncated) covered a wide range of topics. He is famed for solving a variety of boundary value problems. For example he solved Helmholtz's problem for jets, giving the first uniqueness and existence theorems for free jets in a series of papers from 1923 to 1929. He examined boundary problems in an infinite strip, giving hydrodynamic and electromagnetic applications" (MacTutor). From the library of Theodore von Karman, with his stamps and docketing on the front wrappers. (Inventory #: 40665)