Colleen Ackermann

activity

20142026

collaborators

4 papers

math.DG2026

A note on the Slicing of $(k + 1)$ -Currents in the Heisenberg Group $H^{n}$ in the case $k = n$

Colleen Ackermann, Giovanni Canarecci

This paper aims to expand on the open case $k = n$ regarding Proposition 3.6[1] and hopefully foster curiosity for its resolution.

math.CV2018

Quasiconformality and hyperbolic skew

C. Ackermann, A. Fletcher

We prove that if $f : B^{n} \to B^{n}$ , for $n \geq 2$ , is a homeomorphism with bounded skew over all equilateral hyperbolic triangles, then $f$ is in fact quasiconforma…

math.CV2016

Equilateral triangle skew condition for quasiconformality

Colleen Ackermann, Peter Haïssinsky, Aimo Hinkkanen

We characterize quasiconformal mappings in terms of the distortion of the vertices of equilateral triangles.

math.CV2014

An Approach to Studying Quasiconformal Mappings on Generalized Grushin Planes