2 papers
math.FA2026
Sobolev extensions, interpolation inequalities and consequences
Rupert L. Frank, Pekka Koskela, Riddhi Mishra
We prove Sobolev interpolation inequalities on extension domains that have a form reminiscent of the corresponding whole-space inequalities. This form is crucial in certain applica…
math.FA2026
How to recognise extension domains
Riddhi Mishra, Kaushik Mohanta
Let be a bounded domain and . We prove that there is a bounded extension operator if and…