On covariant scalar green functions in a weak gravitational field
β Scribed by J.R Carver
- Publisher
- Elsevier Science
- Year
- 1969
- Tongue
- English
- Weight
- 942 KB
- Volume
- 55
- Category
- Article
- ISSN
- 0003-4916
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π SIMILAR VOLUMES
We give a formal solution of the single -particle Green's function of a scalar field in an external gravitational field in functional integral form. The problem is solved by introducing an internal coordinate 5 and making all operators as commuting functions of the variable 5. The operator products
## Abstract The addition theorem for a freeβspace scalar Green's function plays an important role in the fast multipole method (FMM). Therefore, both the accuracy and convergence are issues of concern in the code implementation of the FMM. In this paper, the addition theorem, when used in an unboun