Results 1 to 10 of about 302 (108)
Deep learning for atrial electrogram estimation: toward non-invasive arrhythmia mapping using variational autoencoders [PDF]
Frontiers in PhysiologyBackgroundNon-invasive estimation of intracardiac electrograms (EGMs) from body surface potential measurements (BSPMs) could reduce reliance on invasive mapping and enable safer, patient-specific characterization of atrial arrhythmias.
Miriam Gutiérrez-Fernández +7 more
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Tikhonov Well-Posedness and Differentiability on Asymmetrically Normed Spaces [PDF]
On normed vector spaces there is a well-known connection between the Tikhonov well-posedness of a minimisation problem and the differentiability of an associated convex conjugate function. We show how this duality naturally generalises to the setting of asymmetrically normed spaces and prove a universal differentiability property of the convex ...
Ján Fischer, Jobst Ziebell
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Inversion of geothermal heat flux in a thermomechanically coupled nonlinear Stokes ice sheet model [PDF]
The Cryosphere, 2016 We address the inverse problem of inferring the basal geothermal heat flux from surface velocity observations using a steady-state thermomechanically coupled nonlinear Stokes ice flow model.
H. Zhu +5 more
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Journal of High Energy Physics, 2021 In this paper, we propose a new method for obtaining a Born cross section using visible cross section data. It is assumed that the initial state radiation is taken into account in a visible cross section, while in a Born cross section this effect is ...
S. S. Gribanov, A. S. Popov
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Journal of Applied Mathematics, 2014 We consider an ill-posed initial boundary value problem for the Helmholtz equation. This problem is reduced to the inverse continuation problem for the Helmholtz equation.
Sergey Igorevich Kabanikhin +4 more
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Frontiers in Physiology, 2018 Electrocardiographic imaging (ECGI) strongly relies on a priori assumptions and additional information to overcome ill-posedness. The major challenge of obtaining good reconstructions consists in finding ways to add information that effectively restricts
Steffen Schuler +2 more
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A General Method for the Solution of Inverse Problems in Transport Phenomena
Chemical Engineering Transactions, 2015 The typical inverse problems in transport phenomena are given by partial differential equations with unknown boundary conditions, which are to be estimated from measurements corresponding to solutions of the PDEs or of their gradients.
M. Vocciante, A. Reverberi, V. Dovi
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Numerical Recovering of Space-Dependent Sources in Hyperbolic Transmission Problems
MathematicsA body may have a structural, thermal, electromagnetic or optical role. In wave propagation, many models are described for transmission problems, whose solutions are defined in two or more domains.
Miglena N. Koleva, Lubin G. Vulkov
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An inverse source problem for a pseudoparabolic equation with memory
AIMS MathematicsThis paper is devoted to investigating the well-posedness, as well as performing the numerical analysis, of an inverse source problem for linear pseudoparabolic equations with a memory term.
M. J. Huntul +3 more
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Boundary Value ProblemsThis research studies the inverse boundary value problem for fractional elliptic equation of Tricomi–Gellerstedt–Keldysh type and obtains a condition stability result.
Xiao Zhang
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