Search Results - "KLOTZ, Andreas"

Reduction of CPR artifacts in the ventricular fibrillation ECG by coherent line removal by Amann, Anton, Klotz, Andreas, Niederklapfer, Thomas, Kupferthaler, Alexander, Werther, Tobias, Granegger, Marcus, Lederer, Wolfgang, Baubin, Michael, Lingnau, Werner

“…Interruption of cardiopulmonary resuscitation (CPR) impairs the perfusion of the fibrillating heart, worsening the chance for successful defibrillation…”
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Inverse closed ultradifferential subalgebras by Klotz, Andreas

“…In previous work we have shown that classical approximation theory provides methods for the systematic construction of inverse-closed smooth subalgebras. Now…”
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Spectral subspaces of Sturm-Liouville operators and variable bandwidth by Celiz, Mark Jason, Gröchenig, Karlheinz, Klotz, Andreas

“…We study spectral subspaces of the Sturm-Liouville operator f↦−(pf′)′ on R, where p is a positive, piecewise constant function. Functions in these subspaces…”
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Phase Transitions in Rate Distortion Theory and Deep Learning by Grohs, Philipp, Klotz, Andreas, Voigtlaender, Felix

“…Rate distortion theory is concerned with optimally encoding signals from a given signal class S using a budget of R bits, as R → ∞ . We say that S can be…”
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The optimal dyadic derivative by Klotz, Andreas

“…We show that the best approximation to the difference operators on the cyclic groups of order 2 n by a dyadic convolution operator are the restrictions of a…”
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Spectral invariance of Besov–Bessel subalgebras by Klotz, Andreas

“…Using principles of the theory of smoothness spaces, we give systematic constructions of scales of inverse-closed subalgebras of a given Banach algebra with…”
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What Is Variable Bandwidth? by Gröchenig, Karlheinz, Klotz, Andreas

“…We propose a new notion of variable bandwidth that is based on the spectral subspaces of an elliptic operator Apf=−ddx(p(x)ddx)f where p > 0 is a strictly…”
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Density of sampling and interpolation in reproducing kernel Hilbert spaces by Führ, Hartmut, Gröchenig, Karlheinz, Haimi, Antti, Klotz, Andreas, Romero, José Luis

“…We derive necessary density conditions for sampling and for interpolation in general reproducing kernel Hilbert spaces satisfying some natural conditions on…”
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Noncommutative Approximation: Inverse-Closed Subalgebras and Off-Diagonal Decay of Matrices by Gröchenig, Karlheinz, Klotz, Andreas

“…We investigate two systematic constructions of inverse-closed subalgebras of a given Banach algebra or operator algebra , both of which are inspired by…”
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Norm-controlled inversion in smooth Banach algebras, II by Gröchenig, Karlheinz, Klotz, Andreas

“…We show that smoothness implies norm‐controlled inversion: the smoothness of an element a in a Banach algebra with a one‐parameter automorphism group is…”
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Norm‐controlled inversion in smooth Banach algebras, I by Gröchenig, Karlheinz, Klotz, Andreas

“…Every differential subalgebra of a unital C*‐algebra is spectrally invariant. We derive a quantitative version of this well‐known fact and show that a minimal…”
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Experimental operation of a solar‐driven climate system with thermal energy storages using mixed‐integer nonlinear model predictive control by Bürger, Adrian, Bull, Daniel, Sawant, Parantapa, Bohlayer, Markus, Klotz, Andreas, Beschütz, Daniel, Altmann‐Dieses, Angelika, Braun, Marco, Diehl, Moritz

“…This work presents the results of experimental operation of a solar‐driven climate system using mixed‐integer nonlinear model predictive control (MPC). The…”
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Density of sampling and interpolation in reproducing kernel Hilbert spaces: DENSITY IN REPRODUCING KERNEL HILBERT SPACES by Führ, Hartmut, Gröchenig, Karlheinz, Haimi, Antti, Klotz, Andreas, Romero, José Luis

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Necessary Density Conditions for Sampling and Interpolation in Spectral Subspaces of Elliptic Differential Operators by Gröchenig, Karlheinz, Klotz, Andreas

“…Analysis & PDE 17 (2024) 587-616 We prove necessary density conditions for sampling in spectral subspaces of a second order uniformly elliptic differential…”
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Strong corruption of electrocardiograms caused by cardiopulmonary resuscitation reduces efficiency of two-channel methods for removing motion artefacts in non-shockable rhythms by Werther, Tobias, Klotz, Andreas, Granegger, Marcus, Baubin, Michael, Feichtinger, Hans G, Amann, Anton, Gilly, Hermann

“…Abstract Aim Cardiopulmonary resuscitation (CPR) artefact removal methods provide satisfactory results when the rhythm is shockable but fail on non-shockable…”
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Quantitative estimates: How well does the discrete Fourier transform approximate the Fourier transform on $\mathbb{R} by Ehler, Martin, Gröchenig, Karlheinz, Klotz, Andreas

“…In order to compute the Fourier transform of a function $f$ on the real line numerically, one samples $f$ on a grid and then takes the discrete Fourier…”
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Removal of CPR Artifacts From the Ventricular Fibrillation ECG by Adaptive Regression on Lagged Reference Signals by Rheinberger, Klaus, Steinberger, Thomas, Unterkofler, Karl, Baubin, Michael, Klotz, Andreas, Amann, Anton

“…Removing cardiopulmonary resuscitation (CPR)-related artifacts from human ventricular fibrillation (VF) electrocardiogram (ECG) signals provides the…”
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Neutralization of human parvovirus B19 by plasma and intravenous immunoglobulins by Modrof, Jens, Berting, Andreas, Tille, Björn, Klotz, Andreas, Forstner, Christina, Rieger, Sandra, Aberham, Claudia, Gessner, Matthias, Kreil, Thomas R.

“…BACKGROUND: Human parvovirus B19 (B19V) is a highly prevalent pathogen, and plasma pools for manufacturing of plasma‐derived products have been shown to…”
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Spectral Subspaces of Sturm-Liouville Operators and Variable Bandwidth by Celiz, Mark Jason, Gröchenig, Karlheinz, Klotz, Andreas

“…J. Math. Anal. Appl. 535 (2024), no. 2, Paper No. 128225, 30 pp We study spectral subspaces of the Sturm-Liouville operator $f \mapsto -(pf')'$ on…”
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Evolution of a participatory GIS by Voss, Angi, Denisovich, Ivan, Gatalsky, Peter, Gavouchidis, Kiriakos, Klotz, Andreas, Roeder, Stefanie, Voss, Hans

“…Participatory spatial planning and decision making requires a combination of software tools for group decision support, individual decision support and…”
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