NASA NTRS · 19970009402
The Schwinger Variational Method
Abstract
Variational methods have proven invaluable in theoretical physics and chemistry, both for bound state problems and for the study of collision phenomena. For collisional problems they can be grouped into two types: those based on the Schroedinger equation and those based on the Lippmann-Schwinger equation. The application of the Schwinger variational (SV) method to e-molecule collisions and photoionization has been reviewed previously. The present chapter discusses the implementation of the SV method as applied to e-molecule collisions.
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Huo, Winifred M.. 1995-01-01. The Schwinger Variational Method. https://ntrs.nasa.gov/citations/19970009402
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