Virtual Immediate Basins of Newton Maps and Asymptotic Values
| dc.creator | Buff, Xavier | |
| dc.creator | Rueckert, Johannes | |
| dc.date | 2006-01-26 | |
| dc.date.accessioned | 2026-07-07T06:59:19Z | |
| dc.date.available | 2026-07-07T06:59:19Z | |
| dc.description | Newton's root finding method applied to a (transcendental) entire function f:C->C is the iteration of a meromorphic function N. It is well known that if for some starting value z, Newton's method converges to a point x in C, then f has a root at x. We show that in many cases, if an orbit converges to infinity for Newton's method, then f has a `virtual root' at infinity. More precisely, we show that if N has an invariant Baker domain that satisfies some mild assumptions, then 0 is an asymptotic value for f. Conversely, we show that if f has an asymptotic value of logarithmic type at 0, then the singularity over 0 is contained in an invariant Baker domain of N, which we call a virtual immediate basin. We show by way of counterexamples that this is not true for more general types of singularities. | |
| dc.description | 15 pages, 1 figure | |
| dc.identifier | https://arxiv.org/abs/math/0601644 | |
| dc.identifier | http://arxiv.org/abs/math/0601644 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/107707 | |
| dc.subject | Dynamical Systems | |
| dc.subject | Complex Variables | |
| dc.subject | 37F10 (Primary), 30D05, 49M15 (Secondary) | |
| dc.title | Virtual Immediate Basins of Newton Maps and Asymptotic Values | |
| dc.type | text |