Physics NotePublished
Convolutions of Particle Green Functions
C.G. Bollini; J. J. Giambiagi
1991
Publication details
- Authors
- C.G. Bollini; J. J. Giambiagi
- Type
- Physics Note
- Status
- Published
- Publication date
- 1991
- Description
- The use of Feynman causal function in the perturbative treatment of S-matrix made the computation of convolutions an easy and well known procedure for free particle propagators. But the convolution of its components, like the <math>\delta\,\!</math> and Principal values among themselves is very rarely looked upon. In field theories with higher order equations of motion some of these convolutions appear as the fundamental ingredients A discussion of these convolutions is explicitly done in the simplest examples.
- Year
- 1991
- Number
- CBPF-NF-026/91
- Linked to a thesis
- No
- Linked to a grant
- No