Results 31 to 40 of about 505,478 (275)

Remarks about a paper dealing with the equivalence of Mann and Ishikawa iterations

open access: yesJournal of Numerical Analysis and Approximation Theory, 2004
We give an affirmative answer to the following question: are Mann and Ishikawa iterations equivalent under the assumptions that \(\lim_{n\rightarrow\infty }\alpha_{n}\neq0\;\) and \(\lim_{n\rightarrow\infty}\beta_{n}\neq0\)?
Ştefan M Şoltuz
doaj   +2 more sources

Inertial Krasnoselskii-Mann Iterations

open access: yesSet-Valued and Variational Analysis
Abstract We establish the weak convergence of inertial Krasnoselskii-Mann iterations towards a common fixed point of a family of quasi-nonexpansive operators, along with estimates for the non-asymptotic rate at which the residuals vanish. Strong and linear convergence are obtained in the quasi-contractive setting.
Juan José Maulén   +2 more
openaire   +3 more sources

Krasnoselskii–Mann Iterations: Inertia, Perturbations and Approximation

open access: yesJournal of Optimization Theory and Applications
Abstract This paper is concerned with the study of a family of fixed point iterations combining relaxation with different inertial (acceleration) principles. We provide a systematic, unified and insightful analysis of the hypotheses that ensure their weak, strong and linear convergence, either matching or improving previous results obtained ...
Daniel Cortild, Juan Peypouquet
openaire   +5 more sources

A MANN ITERATIVE REGULARIZATION METHOD FOR ELLIPTIC CAUCHY PROBLEMS [PDF]

open access: yesNumerical Functional Analysis and Optimization, 2001
We investigate the Cauchy problem for linear elliptic operators with $C^\infty$-coefficients at a regular set $Ω\subset R^2$, which is a classical example of an ill-posed problem. The Cauchy data are given at the manifold $Γ\subset \partialΩ$ and our goal is to reconstruct the trace of the $H^1(Ω)$ solution of an elliptic equation at $\partial Ω/ Γ ...
Heinz W. Engl, A. Leitão
openaire   +3 more sources

Implicit Mann Type Iteration Method Involving Strictly Hemicontractive Mappings in Banach Spaces [PDF]

open access: yes, 2012
We proved that the modified implicit Mann iteration process can be applied to approximate the fixed point of strictly hemicontractive mappings in smooth Banach ...
Shin Min Kang, Arif Rafiq
core   +1 more source

Preoperative circulating tumor cells integrated with imaging analysis for prognostic evaluation in head and neck squamous cell carcinoma

open access: yesMolecular Oncology, EarlyView.
Detecting circulating tumor cells (CTCs) in blood before surgery may help predict outcomes in patients with head and neck squamous cell carcinoma (HNSCC). Here, we show when combined with tumor size and lymph node involvement from routine imaging, CTC status identifies high‐risk patients with poorer survival—offering a simple, minimally invasive tool ...
Susanne Flach   +9 more
wiley   +1 more source

Automated FRAP microscopy for high‐throughput analysis of protein dynamics in chromatin organization and transcription

open access: yesFEBS Open Bio, EarlyView.
RoboMic is an automated confocal microscopy pipeline for high‐throughput functional imaging in living cells. Demonstrated with fluorescence recovery after photobleaching (FRAP), it integrates AI‐driven nuclear segmentation, ROI selection, bleaching, and analysis.
Selçuk Yavuz   +6 more
wiley   +1 more source

Comparison of fastness of the convergence among Krasnoselskij, Mann, and Ishikawa iterations in arbitrary real Banach spaces

open access: yesFixed Point Theory and Applications, 2007
Let E be an arbitrary real Banach space and K a nonempty, closed, convex (not necessarily bounded) subset of E. If T is a member of the class of Lipschitz, strongly pseudocontractive maps with Lipschitz constant L≥1, then it is shown that to each ...
K. N. V. V. Vara Prasad, G. V. R. Babu
doaj   +1 more source

Convergence theorems of modified Mann iterations [PDF]

open access: yesFixed Point Theory and Applications, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chen, Jinzuo, Wu, Dingping
openaire   +1 more source

On the Convergence of Techniques that Improve Value Iteration [PDF]

open access: yes, 2013
Prioritisation of Bellman backups or updating only a small subset of actions represent important techniques for speeding up planning in MDPs. The recent literature showed new efficient approaches which exploit these directions.
Marek Grzes   +3 more
core   +1 more source

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