Abstract
We investigate the Laplacian Δ on a smooth bounded open set Ω ⊂ R n with Wentzell-Robin boundary condition \(\beta u + \frac{{\partial u}}{{\partial v}} + \Delta u = 0\) on the boundary Γ. Under the assumption β ∈ C(Γ) with β ≥ 0, we prove that Δ generates a differentiable positive contraction semigroup on \(C\left( {\bar \Omega } \right)\) and study some monotonicity properties and the asymptotic behaviour.
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Communicated by Rainer Nagel
Dedicated to Jerry Goldstein on the occasion of his 60th birthday
Work partially supported by GNAMPA-INdAM. The first author is most grateful for the hospitality of the Universities of Bari and Lecce.
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Arendt, W., Metafune, G., Pallara, D. et al. The Laplacian with Wentzell-Robin boundary conditions on spaces of continuous functions. Semigroup Forum 67, 247–261 (2003). https://doi.org/10.1007/s00233-002-0010-8
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DOI: https://doi.org/10.1007/s00233-002-0010-8