Search Results - "Gabel, Fabian"

The Stokes operator in two-dimensional bounded Lipschitz domains by Gabel, Fabian, Tolksdorf, Patrick

“…We consider the Stokes resolvent problem in a two-dimensional bounded Lipschitz domain Ω subject to homogeneous Dirichlet boundary conditions. We prove…”
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A unified observability result for non-autonomous observation problems by Gabel, Fabian, Seelmann, Albrecht

“…A final-state observability result in the Banach space setting for non-autonomous observation problems is obtained that covers and extends all previously known…”
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Spectral Approximation of Generalized Schrödinger Operators via Approximation of Subwords by Gabel, Fabian, Gallaun, Dennis, Grossmann, Julian, Lindner, Marko, Ukena, Riko

“…We prove criteria, purely based on finite subwords of the potential, for spectral inclusion as well as Hausdorff approximation of pseudospectra or even spectra…”
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A unified observability result for non-autonomous observation problems by Gabel, Fabian, Seelmann, Albrecht

“…Arch. Math. 122 (2024), 227--239 A final-state observability result in the Banach space setting for non-autonomous observation problems is obtained that covers…”
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The Stokes operator in two-dimensional bounded Lipschitz domains by Gabel, Fabian, Tolksdorf, Patrick

“…Journal of Differential Equations 340 (2022) 227-272 We consider the Stokes resolvent problem in a two-dimensional bounded Lipschitz domain $\Omega$ subject to…”
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Observability for Non-autonomous Systems by Bombach, Clemens, Gabel, Fabian, Seifert, Christian, Tautenhahn, Martin

“…SIAM Journal on Control and Optimization 61 (2023) 313-339 We study non-autonomous observation systems \begin{align*} \dot{x}(t) = A(t) x(t),\quad y(t) = C(t)…”
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Spectral approximation of generalized Schr\"odinger operators via approximation of subwords by Gabel, Fabian, Gallaun, Dennis, Großmann, Julian, Lindner, Marko, Ukena, Riko

“…We demonstrate criteria, purely based on finite subwords of the potential, to guarantee spectral inclusion as well as Hausdorff approximation of pseudospectra…”
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Finite Sections of Periodic Schr\"odinger Operators by Gabel, Fabian, Gallaun, Dennis, Großmann, Julian, Lindner, Marko, Ukena, Riko

“…We study discrete Schr\"odinger operators $H$ with periodic potentials as they are typically used to approximate aperiodic Schr\"odinger operators like the…”
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Finite section method for aperiodic Schr\"odinger operators by Gabel, Fabian, Gallaun, Dennis, Großmann, Julian, Lindner, Marko, Ukena, Riko

“…We consider 1D discrete Schr\"odinger operators with aperiodic potentials given by a Sturmian word, which is a natural generalisation of the Fibonacci…”
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