Absence of pure point spectrum under dynamical avoidance
Absence of pure point spectrum under dynamical avoidance
Let and be the parameters in the spectral construction, let be the associated map, let be the associated rational map, and let denote the indeterminacy points of . For every real , assume there are open subsets and such that
Pure point spectrum conjecture. If and this condition holds for every real , then
The question arises because the non-deterministic spectrum is related to the indeterminacy points of , while pure point spectrum beyond the non-deterministic component would suggest that iterates of approach those points. The supplied text gives no resolution, so the conjecture remains open.
Sources & referencesView supporting material
Primary source
Christophe Sabot, “Spectral properties of self-similar lattices and iteration of rational maps”, arXiv:math-ph/0201040 (2003).
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