The many-to-few lemma and multiple spines
- Harris, Simon S.
- Roberts, Matthew I.
2010 Mathematics Subject Classification
- Branching processes, many-to-one, many-to-few, spine, change of measure
We develop an extension to the spine theory of branching processes, and use it to give a simple and intuitive identity for calculating additive functionals of such processes, generalizing the well-known many-to-one lemma.