Coleman, John

We make a particular acknowledgement to the late Dr John Longwell CBE, Deputy Government Chemist in 1964, who encouraged the Laboratory to enter the field, and to the line of Government Chemists who supported the work over the long years the late Dr David Lewis CB, the late Dr Harold Egan, Dr Ron Coleman CB (who became Chief Scientist of the Department of Trade and Industry), Mr Alex Williams CB and Dr Richard Worswick. 

Rumi, Mevlana Jalaluddin.Unseen rain quatrains of Rumi. Translated by John Moyne and Coleman Barks. Battleboro (VT) Threshold Books, 1986. 

Handelsman JC, Zeiler S, Coleman J, Dooley W, Walrath JM Experience with ambulatory preoperative bowel preparation at The Johns Hopkins Hospital. Arch Surg 1993 128 441— 444. 

Lipeles, R. A. Coleman, D. J. 1988. Effect of drying and annealing on metallo-organic solution deposition of PZT films. In Ultrastructure Processing of Advanced Ceramics, edited by Ulrich, D. R. Mackenzie, J. D. John Wiley Sons, Inc., New York. pp. 919-933. 

St. John T, Coleman D, Reid C (1983) Growth and spatial distribution of nutrient-absorbing organs selective exploitation of soil heterogeneity. Plant Soil 71 487-493. doi http //dx.doi. 

Figure 1 Paul Dirac and Richard Feynman at the International Conference on Relativistic Theories of Gravitation, Warsaw, Poland, July 25-31, 1962. Photograph by A. John Coleman, courtesy AIP Emilio Segre Visual Archives, Physics Today Collection.

Then, in the Old Ages (1940 or 1951-1967) some ingenious people became aware that, in the case of two-body interactions, it is the two-particle reduced density matrix (2-RDM) that carries in a compact way all the relevant information about the system (energy, correlations, etc.). Early insight by Husimi (1940) and challenges by Charles Coulson were completed by a clear realization and formulation of the A-representability problem by John Coleman in 1951 (for the history, see his book [1] and Chapters 1 and 17 of the present book). Then a series of theorems on A-representability followed, by John Coleman and many... 

A beautiful month on Lake Qntario in a very friendly atmosphere. John Coleman, Bob Erdahl, Claude Garrod, Richard Hall, Hans Kummer, J. Lindenberg, R. McWeeny, Yngve Qhrn, David Peat, Mitja Rosina, Mary-Beth Ruskai, Darwin Smith, George Warsket, Antonio Ciampi, Ernest Davidson, and others discussed A-representability, the interpretation of RDMs, and other unsolved problems. 

Density Matrices and Density Functionals, the A. John Coleman Symposium, Kingston, August 25-29, 1985. Sponsored by National Sciences and Engineering Research Council of Canada Queen s University. Coorganizers R. M. Erdahl and V. H. Smith, Jr. Proceedings R. M. Erdahl and V. H. Smith, Jr., editors. Density Matrices and Density Functionals, Reidel (1987), 600 pp. 

New optimism was brought into the field of RDMs by Hiroshi Nakatsuji, Carmela Valdemoro, and David Mazziotti with their cumulant expansion, the hierarchy of equations connecting the 2-RDM with 4-RDMs, and the contracted Schrd-dinger equation. John Coleman continues to be the motor for further progress. 

The author expresses his appreciation to Dudley Herschbach, Herschel Rabitz, John Coleman,... 

A. J. Coleman, A-representabihty circunvented, in Energy, Structure and Reactivity—Boulder Conference (D.W Smith and W. McRae, eds.), John Wiley Sons, Hoboken, NJ, 1973. 

The author expresses his appreciation to Dudley Herschbach, Herschel Rabitz, John Coleman, and Alexander Mazziotti for their support and encouragement. The author thanks the NSF, the Henry-Camille Dreyfus Foundation, the Alfred R Sloan Foundation, and the David-Lucile Packard Foundation for their support. 

A. John Coleman Department of Mathematics and Statistics, Queen s University, Kingston, Ontario K7L 3N6, Canada... 

R. Erdahl and V. El. Smith Jr., Eds., Density Matrices and Density Functionals Proceedings of the A. John Coleman Symposium (Reidel, Boston, 1987). 

Painter, P. C., Coleman, M. M., Koenig, J. L. Theory of Vibrational Spectroscopy with Application to Polymers, John Wiley and Sons, New York 1981... 

In one sense, research in theoretical chemistry at Queen s University at Kingston originated outside the Department of Chemistry when A. John Coleman came in 1960 as head of the Department of Mathematics. Coleman took up Charles Coulson s challenge150 to make the use of reduced density matrices (RDM) a viable approach to the N-electron problem. RDMs had been introduced earlier by Husimi (1940), Lowdin (1955), and McWeeny (1955). The great attraction was that their use could reduce the 4N space-spin coordinates of the wavefunctions in the variational principle to only 16 such coordinates. But for the RDMs to be of value, one must first solve the celebrated N-repre-sentability problem formulated by Coleman, namely, that the RDMs employed must be derivable from an N-electron wavefunction.151 This constraint has since been a topic of much research at Queen s University, in the Departments of Chemistry and Mathematics as well as elsewhere. A number of workshops and conferences about RDMs have been held, including one in honor of John Coleman in 1985.152 Two chemists, Hans Kummer [Ph.D. Swiss Federal Technical... 

Coleman, "Organic Syntheses, Collective Volume I, 2nd ed., p. 442, John Wiley A Sons, New York, 1941. 

P.C. Painter, M.M. Coleman and J.L. Koenig, The Theory of Vibrational Spectroscopy and its Application to Polymer Materials, John Wiley Sons, New York, NY, USA, 1982. 

---