Robert Haller, Hannes Meinlschmidt and Joachim Rehberg: H\"older regularity for domains of
fractional powers of elliptic operators with mixed boundary conditions (PAFA)
Volume 9, Number 1, 169-194, 2024
Hölder regularity for domains of
fractional powers of elliptic operators with mixed boundary conditions Robert Haller, Hannes Meinlschmidt and Joachim Rehberg