English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

This is a commentary on Teichm{\"u}ller's paper Ein Verschiebungssatz derquasikonformen Abbildung (A displacement theorem of quasiconformal mapping),published in 1944. We explain in detail how Teichm{\"u}ller solves the problemof finding the quasiconformal mapping from the unit disc to itself, sending 0to a strictly negative point on the real line, holding the boundary of the discpointwise fixed and with the smallest quasiconformal dilatation. We mentionalso some consequences of this extremal problem and we ask a question.

A commentary on Teichm\"uller's paper "Verschiebungssatz der quasikonformen Abbildung" (A displacement theorem of quasiconformal mapping)