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Boundary unique continuation in planar domains by conformal mapping

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 5, May 2026.
Abstract Let Ω⊂R2$\Omega \subset \mathbb {R}^2$ be a chord arc domain. We give a simple proof of the the following fact, which is commonly known to be true: a nontrivial harmonic function which vanishes continuously on a relatively open set of the boundary cannot have the norm of the gradient which vanishes on a subset of positive surface measure (arc ...
Stefano Vita
wiley   +1 more source

Superharmonic functions on Lipschitz domain [PDF]

open access: yesStudia Mathematica, 1971
Silverstein, M. L., Wheeden, R. L.
openaire   +2 more sources

Lipschitz-based robustness estimation for hyperdimensional learning. [PDF]

open access: yesFront Artif Intell
Yeung C   +5 more
europepmc   +1 more source

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