Results 61 to 70 of about 1,268,193 (209)

Optimization Methods for Inverse Problems

open access: yes, 2017
Optimization plays an important role in solving many inverse problems. Indeed, the task of inversion often either involves or is fully cast as a solution of an optimization problem.
Cui, Tiangang   +2 more
core  

Isomorphic Inverse Problems

open access: yesRussian Journal of Mathematical Physics
Consider two inverse problems for Sturm-Liouville problems on the unit interval. It means that there are two corresponding mappings $F, f$ from a Hilbert space of potentials $H$ into their spectral data. They are called isomorphic if $F$ is a composition of $f$ and some isomorphism $U$ of $H$ onto itself.
openaire   +3 more sources

Inverse spectral problems for nonlinear Sturm-Liouville problems

open access: yesElectronic Journal of Differential Equations, 2007
This paper concerns the nonlinear Sturm-Liouville problem $$ -u''(t) + f(u(t)) = lambda u(t), quad u(t) > 0, quad t in I := (0, 1), quad u(0) = u(1) = 0, $$ where $lambda $ is a positive parameter. We try to determine the nonlinear term $f(u)$ by means
Tetsutaro Shibata
doaj  

STEREOLOGICAL CORRECTION OF MINERAL LIBERATION GRADE DISTRIBUTIONS ESTIMATED BY SINGLE SECTIONING OF PARTICLES

open access: yesImage Analysis and Stereology, 2011
The liberation distribution of ore samples is of considerable interest for process optimisation in the minerals industry. A scanning electron microscope-based automatic mineral analyser such as the LEO QEMSCAN system developed by CSIRO Minerals is a ...
Steven Spencer, David Sutherland
doaj   +1 more source

On a Stochastic Regularization Technique for Ill-Conditioned Linear Systems

open access: yesOpen Engineering, 2019
Knowledge about the input–output relations of a system can be very important in many practical situations in engineering. Linear systems theory comes from applied mathematics as an efficient and simple modeling technique for input–output systems ...
Moura Henrique Gomes   +3 more
doaj   +1 more source

Inverse Problems in Pump–Probe Spectroscopy

open access: yesPhotochem
Ultrafast pump–probe spectroscopic studies allow for deep insights into the mechanisms and timescales of photophysical and photochemical processes. Extracting valuable information from these studies, such as reactive intermediates’ lifetimes and coherent
Denis S. Tikhonov   +2 more
doaj   +1 more source

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