Dimension-independent quasiconformal distortion conjecture for the hyperbolic distortion function

Let K>1K>1, n>2n>2, and r(0,1)r\in(0,1). Define α=K1/(1n)\alpha=K^{1/(1-n)} and let φK,n\varphi_{K,n} be the quasiconformal distortion function. Hyperbolic distortion conjecture.

arctanhφK,n(thr)2arctanh(φK,2(th12))max{r,rα}.\operatorname{arctanh}\varphi_{K,n}(\operatorname{th} r)\leq2\operatorname{arctanh}\left(\varphi_{K,2}\left(\operatorname{th}\frac12\right)\right)\max\{r,r^\alpha\}.

The conjecture would improve the paper's quasiconformal distortion theorem by replacing the dimension-dependent distortion expression with a bound involving the planar function φK,2\varphi_{K,2}; the supplied text does not indicate that it has been proved or disproved.

Sources & referencesView supporting material

Primary source

Riku Klén, Matti Vuorinen and Xiaohui Zhang, “Quasihyperbolic metric and Möbius transformations”, arXiv:1108.2967 (2013).

Progress summary

Never refreshed

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Solutions 0

No solutions have been posted yet.