Smooth counterexamples to strong unique continuation for a Beltrami system in ${\mathbb{C}}^2$

Abstract

We construct an example of a smooth map $\mathbb{C}\to {\mathbb{C}}^2$ which vanishes to infinite order at the origin, and such that the ratio of the norm of the $\bar{z}$ derivative to the norm of the $z$ derivative also vanishes to infinite order. This gives a counterexample to strong unique continuation for a vector valued analogue of the Beltrami equation.

21 pages

References in corpus (1)

• Uniqueness in Rough Almost Complex Structures and Differential Inequalities