TY  - JOUR 
AU  - Gálvez López, José Antonio
PY  - 2022
UR  - http://hdl.handle.net/10481/74981
AB  - We showthat any compact surface of genus zero inR3 that satisfies a quasiconformal inequality
between its principal curvatures is a round sphere. This solves an old open problem by
H. Hopf, and gives a spherical version of Simon’s quasiconformal...
LA  - eng
PB  - Springer
TI  - A quasiconformal Hopf soap bubble theorem
DO  - 10.1007/s00526-022-02222-7
ER  -