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math.CV2026
Sharp multiplier estimates for the higher-order Schwarzian derivatives of the Koebe function
Jianjun Jin
In this note we study the multiplier norm estimates for the multiplication operators between weighted Bergman spaces, whose symbols are the higher-order Schwarzian derivatives of u…
math.CV2024
On the integral means spectrum of univalent functions with quasconformal extensions
Jianjun Jin
In this note we show that the integral means spectrum of any univalent function admitting a quasiconformal extension to the extended complex plane is strictly less than the univers…