2 papers
math.AP2024
On Fuglede's flux extensions and the point wise definition of linear partial differential operators
Erik Duse
In this work we provide a survey of Fuglede's flux extensions of first order partial differential operators, a concept largely forgotten today. A long the way we also survey the cl…
math.AP2024
Coerciveness and Morrey Inequalities for Elliptic Operators with Natural Boundary Conditions via Weitzenböck Identities
Erik Duse, Andreas Rosén
We prove a Weitzenböck identity for general pairs of constant coefficient homogeneous first order partial differential operators, and deduce from it sufficient algebraic condition…