Goscinski, Osvaldo

Osvaldo Goscinski Department of Quantum Chemistry The Angstrhm Laboratory Box 518 SE-75120 Uppsala Sweden... 

A short presentation of the unpublished Research Report No 217, by Osvaldo Goscinski, from the Quantum Chemistry Group at Uppsala University is made. The Report has the title Conjugate Eigenvalue Problems and the Theory of Upper and Lower Bounds . Some justification of its verbatim inclusion in this Volume in honour of Per-Olov Lowdin is made. It is essentially motivated by the attention that the theory presented there has received in the field of Generalized and Molecular Sturmians. Current work by John Avery and collaborators is alluded to. It is included as an Appendix. 

Osvaldo Goscinski (51), Uppsala University, Dept, of Quantum Chemistry, P.O. Box 518, Uppsala S-75120, Sweden... 

Jean L. Calais, Osvaldo Goscinski, Jan Linderberg, et al., Quantum Science, Methods and Structure, Plenum, New York, 1976. 

Per-Olov Lowdin, Jean Louis Calais, and Osvaldo Goscinski, Quantum Chemistry— A Scientific Melting Pot. Proceedings of a symposium in Uppsala, Sweden, 1977, in lnt. J. Quantum Chem., No. 12 (Suppl.), Wiley, New York, 1978. 

The author would like to take this opportunity to express his gratitude to Professors Osvaldo Goscinski, Jan Linderberg, and Yngve Ohrn for some valuable discussions about the foundations for the special propagator theory during the 1983 Summer Institute at Uppsala University, Uppsala, Sweden. He would also like to thank Professor Brian Weiner for valuable comments as to the mathematical background of the theory and members of the Florida Quantum Theory Project for help with various details. 

In a pioneering 1968 study, [20, 21], Osvaldo Goscinski generalized the concept of Sturmians to many-electron wave equations of the form... 

Together with Osvaldo Goscinski they examine in their second chapter whether it is possible to generate natural orbitals for a system from an initial calculation using generalized Sturmians. 

Department of Chemistry, Goteborg University, SE-412 96 Goteborg, Sweden A tribute to Osvaldo Goscinski on the occasion of his 65th birthday... 

Dedicated to Professor Osvaldo Goscinski on the occasion of his 65th birthday. 

This paper is a tribute to Professor Osvaldo Goscinski and his scientific work. Our scientific roads have crossed only occasionally, but there is a seminal paper that had a strong influence on our work on the direct Cl method. This is the paper from 1970 on the variational-perturbation approach [25]. Per Siegbahn and 1 used this approach in the early development of the direct Cl method and the convergence rate of the secular problem was increased by an... 

SC, in particular, takes great pride in having been one of Prof. Osvaldo Goscinski s graduate students and having the opportunity to pay this modest tribute to a dear friend. This work has been partially supported by CNPq, CAPES and FAPESP (Brazil). 

This article is dedicated to Osvaldo Goscinski in honor of his 65th birthday. I am in great debt to him for a very close, for me important, collaboration initially and for later wisdom and guidance, both when we agreed and perhaps more significantly when we did not. 

A recent article [1] by Osvaldo Goscinski, to whom this paper is dedicated, outlines early developments and includes a reprint of a 1968 report which, although unpublished, was very influential in further developments. The 1959 landmark paper by Shull and Lbwdin [2] introduced the basic ideas in a quantum chemicait context, and soon afterwards Rotenberg [3,4] provided a more general framework (including the nomenclature) within an atomic physics context. 

Dedicated to Osvaldo Goscinski in recognition of his fundamental contributions to quantum chemistry... 

Congratulations Osvaldo It is a pleasure to contribute this paper to a special volume in honour of Osvaldo Goscinski. The senior author has known Osvaldo since he began his graduate work in the Florida, Quantum Theory Project, shortly after Osvaldo had finished his dissertation and moved to Uppsala. His paper Greens functions approach to IPs and his inner projected super-operator formulation of Greens functions are routinely used by us and many others today. 

It is a pleasure to contribute this work in honor of Osvaldo Goscinski, whose elegant theoretical and mathematical treatments have been an inspiration to many of us. The authors acknowledge the finaneial support of the National Science Foundation of the USA. 

Slightly more than 10 years ago one of the present authors together with colleagues in Uppsala, including Osvaldo Goscinski, used one of the simplest possible conjugated polymers, trawi -polyacetylene, (CH) as... 

But, as has been the case with much of the work of Osvaldo Goscinski, science proceeds by proposing and trying new approaches. And in this spirit we close this contribution in the honor of Osvaldo Goscinski ... 

This work is dedicated to Prof. Osvaldo Goscinski on the occasion of his 65th birthday. This work is supported in part by the Basic Research Foundation administered by the Israeli Academy of Sciences and Humanities and by the Fund for the Promotion of Research at Technion. The authors wish to thank Prof. U. Peskin for many helpful discussions and comments. OEA would like to thank the European Community for support (Marie-Curie Fellowship). V.A. would like to thank the Minerva Foundation for financial support. OEA and V.A. would like to acknowledge the hospitality of the Theoretical Chemistry department of Heidelberg University where part of this work has been completed. 

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