Results 21 to 30 of about 5,344,700 (208)
Inverse problems for stochastic transport equations [PDF]
, 2014 Inverse problems for stochastic linear transport equations driven by a temporal or spatial white noise are discussed. We analyse stochastic linear transport equations which depend on an unknown potential and have either additive noise or multiplicative ...
Peszat, S +5 more
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Inverse Problems Have Inverse Complexity [PDF]
, 2008 In this paper we show that inverting problems of higher complexity is easier than inverting problems of lower complexity. While inverting Σp i3CNFSAT is known to be coNP-complete sideri for i=1 we prove that it remains coNP-complete for i=2 and is in P for all i⩾ 3. Relatedly, we show that inverting Σp i3DNFSAT is in P for all i⩾ 1.
Tobias Berg, Harald Hempel
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Carleman estimate for stochastic parabolic equations and inverse stochastic parabolic problems [PDF]
, 2012 In this paper, we establish a global Carleman estimate for stochastic parabolic equations. Based on this estimate, we study two inverse problems for stochastic parabolic equations.
Lü, Q., Lü Q.
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Robust solutions of inverse problems in eletromagnetic non-destructive evaluation
, 2022 S.1907-1921Non-destructive testing (NDT) is the application of physical measurement technology based on energy interaction with the material and its nonconformities.
Altpeter, I. +5 more
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Regularized fixed-point iterations for nonlinear inverse problems
, 2022 S.1-22In this paper, we introduce a derivative-free, iterative method for solving nonlinear ill-posed problems Fu = y, where instead of y, noisy data y(delta) with parallel to y - y(delta)parallel to Y is a nonlinear operator between Hilbert spaces X ...
Pereverzyev, S.S. +2 more
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Sparse deterministic approximation of Bayesian inverse problems [PDF]
, 2011 We present a parametric deterministic formulation of Bayesian inverse problems with an input parameter from infinite-dimensional, separable Banach spaces.
A M Stuart +5 more
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Inverse problems for non-linear hyperbolic equations with disjoint sources and receivers [PDF]
, 2020 The paper studies inverse problems of determining unknown coefficients in various semi-linear and quasi-linear wave equations. We introduce a method to solve inverse problems for non-linear equations using interaction of three waves, that makes it ...
Oksanen, Lauri +2 more
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Inverse problems for elliptic equations with power type nonlinearities [PDF]
, 2021 We introduce a method for solving Calderón type inverse problems for semilinear equations with power type nonlinearities. The method is based on higher order linearizations, and it allows one to solve inverse problems for certain nonlinear equations in ...
Liimatainen, Tony +3 more
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The method of fundamental solutions for Helmholtz-type problems [PDF]
, 2013 The purpose of this thesis is to extend the range of application of the method fundamental solutions (MFS) to solve direct and inverse geometric problems associated with two- or three-dimensional Helmholtz-type equations.
Bin-Mohsin, Bandar Abdullah
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Computer Assisted Methods in Engineering and Science, 2019 We present the next issue of CAMES, in which four articles addressing inverse problems are to be found. These articles were presented during the 5th International Conference on Inverse Problems Methods IPM 2019 which was held at the Kombornia Manor ...
Tadeusz Burczyński
doaj +1 more source