Characterisation of some multivalued harmonic functions on ${\mathbb{R}}^n$

Yang Li, Parsa Mashayekhi, Yichen Zhang

Using different approaches, Simon Donaldson and Dashen Yan recently constructed ${\mathbb{Z}}_2$-harmonic functions on ${\mathbb{R}}^3$ and on ${\mathbb{R}}^n$ for $n⩾3$, respectiv…