An abstract generalization of Källen-Kröner's interation
arXiv:2409.00439
Abstract
We devote this paper to provide an abstract generalization of an iteration originally due to Källén, and revisited later by Kröner, that might be of independent interest.
This has been published as an Appendix to another paper, namely Trans. Amer. Math. Soc. 377 (2024), pp. 5411-5444