Results 21 to 30 of about 259,959 (310)
Application of the Homotopy Method for Fractional Inverse Stefan Problem
Energies, 2020 The paper presents an application of the homotopy analysis method for solving the one-phase fractional inverse Stefan design problem. The problem was to determine the temperature distribution in the domain and functions describing the temperature and the
Damian Słota +3 more
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Inverse stability problem in beam dynamics
Physical Review Accelerators and Beams, 2023 Beam stability is conventionally described by means of the stability diagram, which is a threshold line in a complex plane of a particular intensity parameter, the coherent tune shift; the diagram separates stable and unstable states. The incoherent tune
Alexey Burov
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Category of quantizations and inverse problem
Nuclear Physics B, 2023 We introduce a category composed of all quantizations of all Poisson algebras. By the category, we can treat in a unified way the various quantizations for all Poisson algebras and develop a new classical limit formulation.
Akifumi Sako
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Approximation of Bayesian inverse problems for PDEs [PDF]
, 2010 Inverse problems are often ill posed, with solutions that depend sensitively on data. In any numerical approach to the solution of such problems, regularization of some form is needed to counteract the resulting instability.
Dashti, Massoumeh +7 more
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Uncertainty quantification and weak approximation of an elliptic inverse problem [PDF]
, 2011 We consider the inverse problem of determining the permeability from the pressure in a Darcy model of flow in a porous medium. Mathematically the problem is to find the diffusion coefficient for a linear uniformly elliptic partial differential equation ...
Worthington, Claire +14 more
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Inverse medium problem for a singular contrast [PDF]
, 2019 We consider an inverse medium problem in two- and three-dimensional cases. Namely, we investigate the problem of reconstruction of unknown compactly supported refractive index (contrast) from L-2 with a fixed positive wave number.
T. Tyni, Serov, V., Tyni, T., V. Serov
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Modeling Groundwater Flow in Heterogeneous Porous Media with YAGMod
Computation, 2015 Modeling flow and transport in porous media requires the management of complexities related both to physical processes and to subsurface heterogeneity. A thorough approach needs a great number of spatially-distributed phenomenological parameters, which ...
Laura Cattaneo +4 more
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Obtaining L-systems Rules from Strings
Vetor, 2012 Este artigo apresenta uma proposta para solucionar o Problema Inverso de Lindenmayer nas classes de gramáticas L-systems livres de contexto e determinísticas.
Edmar Santos, Regina Célia Coelho
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Low-Coherence Interferometric Imaging: Solution of the One-Dimensional Inverse Scattering Problem [PDF]
, 2004 Optical coherence tomography (OCT) is a non-invasive imaging technique based on the use of light sources exhibiting a low degree of coherence. Low coherence interferometric microscopes have been successful in producing internal images of thin pieces of ...
Chaubell, Mario Julián
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An inverse random source problem in a stochastic fractional diffusion equation [PDF]
, 2020 In this work the authors consider an inverse source problem the stochastic fractional diffusion equation. The interested inverse problem is to reconstruct the unknown spatial functions f and g (the latter up to the sign) in the source by the statistics ...
Zhang, Zhidong +2 more
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