Eaux

Eaux — marelibri

MONTROLL Elliott Waters: 1916 1983.ABAA

2 offprints including: On the entropy function in sociotechnical systems.

1981Best.-Nr. S13307Washington DC:: Proceedings of the National Academy of Sciences 1981. 1981. 2 offprints. Original wrappers. From the collection of Abraham Pais. Very good. INVENTORY: 1. MONTROLL Elliott W. On the entropy function in sociotechnical systems. Sears Roebuck catalogues/stimulus-response/traffic flow/fluctuations. From: Proceedings of the National Academy of Sciences USA vol. 78 No. 12 pp. 7839-43 Economical Sciences December 1981. "The entropy function H = -Sigmapj log pj pj being the probability of a system being in state j and its continuum analogue H = integralpx log px dx are fundamental in Shannon's theory of information transfer in communication systems. It is here shown that the discrete form of He also appears naturally in single-lane traffic flow theory. In merchandising goods flow from a whole-saler through a retailer to a customer. Certain features of the process may be deduced from price distribution functions derived from Sears Roebuck and Company catalogues. It is found that the dispersion in logarithm of catalogue prices of a given year has remained about constant independently of the year for over 75 years. From this it may be inferred that the continuum entropy function for the variable logarithm of price had inadvertently through Sears Roebuck policies been maximized for that firm subject to the observed dispersion." :: Abstract. 2. MONTROLL Elliott W.; Shlesinger Michael F. On 1/f noise and other distributions with long tails. log-normal distribution/Levy distribution/Pareto distribution/Scale-invariant process. From: Proc. Natl. Acad. Sci. USA Vol. 79 pp. 3380-3383 May 1982 Applied Mathematical Sciences. Original white Proc. natl. Acad. Sci. USA printed cover. / Montroll was anAmerican mathematician and scientist. He taught at a variety of different institutions throughout his career including Yale Cornell and Princeton. In 1943 he was appointed Head of the Mathematics Research Group at the Kellex Corporation where he worked on programs related to the Manhattan Project. Eventually he accepted a professorship at the University of Maryland. He did significant work on traffic flow and continuous-time random walk and received the Lanchester Prize in 1959. Proceedings of the National Academy of Sciences, 1981. unknown books