Cianchi, Andrea
Maz’ya, Vladimir G.
Article History
Received: 3 October 2018
First Online: 4 June 2019
Compliance with Ethical Standards
:
: This research was partly funded by the Research Project of the Italian Ministry of University and Research (MIUR) Prin 2012 “Elliptic and parabolic partial differential equations: geometric aspects, related inequalities, and applications” (Grant No. 2012TC7588), GNAMPA of the Italian INdAM—National Institute of High Mathematics, and RUDN University Program 5-100.
: The authors declare that they have no conflict of interest.