WorldCat Identities

Duffin, Richard James 1909-

Overview
Works: 54 works in 89 publications in 2 languages and 947 library holdings
Genres: Conference proceedings 
Roles: Honoree, Dedicatee
Classifications: QA264, 519.92
Publication Timeline
Key
Publications about  Richard James Duffin Publications about Richard James Duffin
Publications by  Richard James Duffin Publications by Richard James Duffin
posthumous Publications by Richard James Duffin, published posthumously.
Most widely held works by Richard James Duffin
Geometric programming : theory and application by Richard James Duffin ( Book )
22 editions published in 1967 in English and Undetermined and held by 576 WorldCat member libraries worldwide
Constructive approaches to mathematical models : proceedings of a conference in honor of R.J. Duffin, Pittsburgh, PA, 10-14 July, 1978 ( Book )
8 editions published in 1979 in English and held by 298 WorldCat member libraries worldwide
GeometricŐĆeskoe programmirovanie by Richard James Duffin ( Book )
2 editions published in 1972 in Russian and held by 7 WorldCat member libraries worldwide
Galvanomagnetic and thermomagnetic phenomena by Richard James Duffin ( )
3 editions published in 1935 in English and held by 6 WorldCat member libraries worldwide
A stereochemical study of the SE by Richard James Duffin ( Book )
2 editions published in 1981 in Undetermined and English and held by 4 WorldCat member libraries worldwide
Geometricheskoe programmirovanie by Richard James Duffin ( Book )
2 editions published in 1972 in Russian and held by 4 WorldCat member libraries worldwide
Network synthesis through hybrid matrices by Richard James Duffin ( Book )
2 editions published in 1964 in English and held by 2 WorldCat member libraries worldwide
It is shown that the hybrid parameter matrix of a passive n-port network is a positive real matrix function. The hybrid, chain and immittance parameter matrices all have the same degree. The concept of combinatorial equivalence is extended from the linear programming field to network synthesis. An n-port extension of the Brune synthesis procedure is given. A novel concept of degree enumeration is given. (Author)
Algorithms for classical stability problems by Richard James Duffin ( Book )
1 edition published in 1968 in English and held by 2 WorldCat member libraries worldwide
Positivity of weak solutions of non-uniformly elliptic equations by C. V Coffman ( Book )
2 editions published between 1972 and 1973 in English and held by 2 WorldCat member libraries worldwide
The discrete analogue of a class of entire functions by Richard James Duffin ( Book )
1 edition published in 1967 in English and held by 2 WorldCat member libraries worldwide
Lagrangean Functions and Affine Minorants ( Book )
1 edition published in 1979 in English and held by 1 WorldCat member library worldwide
Optimum shape of a cooling fin on a convex cylinder by Richard James Duffin ( Book )
1 edition published in 1967 in English and held by 1 WorldCat member library worldwide
Natural vibrations of cantilevered triangular plates i ( Book )
1 edition published in 1952 in English and held by 1 WorldCat member library worldwide
In this report the Rayleigh and Rayleigh-Ritz methods are applied to the natural vibrations of uniform triangular plates clamped on one edge and free on the other two. Two shapes of plate are investigated: an isosceles plate clamped on the base and a right triangular plate clamped on one leg. Upper bounds are obtained for the fundamental modes and in some cases for the second and third modes as well. The following classes of functions are used to represent the displacement of the plate: (1) One-parameter polynomials with integral exponents; (2) Two-parameter polynomials with integral exponents; (3) Threeparameter polynomials with integral exponents; (4) Fiveparameter polynomials with integral exponents; and (5) Monomials and binomials with variable exponents. In the absence of an exact solution of the problem the frequencies obtained are compared with experimentally determined frequencies for plates of similar shape. For this purpose a formula is developed which relates the frequencies of plates of similar planform but differing in size, thickness, and materials. The comparison between the analytical and experimental results is summarized in a table. While several of the simpler functions yield a satisfactory approximation to the fundamental frequency, only the five-parameter function (of the functions thus far examined) gives reasonable accuracy in the second and third modes, and at the same time it offers a good approximation to the fundamental. (Author)
The AEMS Project in Applied Mathematics at Carnegie-Mellon University ( Book )
1 edition published in 1971 in English and held by 1 WorldCat member library worldwide
This is a record of a research project in applied mathematics at Carnegie-Mellon University. The project is called 'Analysis of Electrical and Mechanical Systems' or AEMS for short. The aims of AEMS are threefold: (a) to apply mathematical analysis to treat new problems arising in science and technology; (b) to develop new mathematical concepts and structures using facets of science and technology as models; and (c) to help students start a career in the interesting area of applied mathematics. (Author)
Geometric programs treated with slack variables by Richard James Duffin ( Book )
1 edition published in 1970 in English and held by 1 WorldCat member library worldwide
PSEUDO-HAMILTONIAN MECHANICS ( Book )
1 edition published in 1961 in English and held by 1 WorldCat member library worldwide
Denver Research Inst., Colo. BALLOON FLIGHT OF MARCH 16, 1961, by David G. Murcray, James N. Brooks, and Norman J. Sible. 15 Aug 61, 66p. incl. illus. (Flight data rept. no. 2) (Contract AF 33(616)7633) Unclassified report DESCRIPTORS: (*Upper atmosphere, *Infrared radiation, Measuremnt, Experimental data.) (Balloon gondolas, Balloons, Scientific re search, Instrumentation.) (Radiometers, Infra red spectroscopy, Recording devices, Power supplies, Calibration, Design.) (Liquefied gases, Nitrogen, Lead compounds, Selenides, Infrared detectors.) The results obtained on a balloon flight made with an automatic programmed radiometer system are presented. The radiometer was equipped with a liquid nitrogen cooled PbSe cell as a detectorAND MEASUREMENTS WERE MADE OF THE INFRARED BACKGROUND RADIATION FROM 1.8 TO 5.0 MICRONS. (Author)
Hybrid addition of matrices : a network theory concept by Richard James Duffin ( Book )
1 edition published in 1970 in English and held by 1 WorldCat member library worldwide
Duality inequalities of mathematics and science by Richard James Duffin ( )
in English and held by 1 WorldCat member library worldwide
Network models by Richard James Duffin ( Book )
1 edition published in 1969 in English and held by 1 WorldCat member library worldwide
A convolution product for the solutions of partial difference equations by Richard James Duffin ( Book )
1 edition published in 1967 in English and held by 1 WorldCat member library worldwide
 
moreShow More Titles
fewerShow Fewer Titles
Audience Level
0
Audience Level
1
  Kids General Special  
Audience level: 0.71 (from 0.00 for Lagrangean ... to 1.00 for Network sy ...)
Alternative Names
Daffin, R.
Duffin, R. J.
Duffin, Richard 1909-1996
Duffin, Richard J.
Duffin, Richard James, 1909-
Duffin, Richard James 1909-1996
Languages
English (49)
Russian (4)