A counterexample to conformal invariance for increasing radial weights
A counterexample to conformal invariance for increasing radial weights
Let denote the unit disk, let be an increasing radial weight that is not admissible, let , and let . The non-invariance conjecture. There exist such , , and for which
This would exhibit failure of invariance under composition with disk automorphisms for a suitable non-admissible weight; the supplied text presents the claim among open conjectures and discusses why constructing the required function remains difficult.
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Sources & referencesView supporting material
Primary source
David Norrbo, “Compactness and related properties of weighted composition operators on weighted BMOA spaces”, arXiv:2502.05533 (2025).
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