Results 41 to 50 of about 1,273,558 (290)

Discrepancy principle for the dynamical systems method [PDF]

open access: yesCommunications in Nonlinear Science and Numerical Simulation, 2005
For the linear ill--posed equation \(Au=f\) with a bounded operator \(A \in L(H)\) and approximately given \(f\) in a Hilbert space \(H\), the author proposes and studies the solution method \({\dot u}=-u+(A^* A+ \epsilon(t))^{-1} A^* f_{\delta}\), \(u(0)=u_0 \in H\).
openaire   +2 more sources

On the Computational Complexity of Linear Discrepancy

open access: yes, 2021
Linear discrepancy is a variant of discrepancy that measures how well we can round vectors w in $[0,1]^n$ to vectors x in ${0,1}^n$, with the error of the rounding measured with respect to a matrix A, i.e.
Li, Lily
core   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan   +18 more
wiley   +1 more source

A discrepancy principle for Poisson data: uniqueness of the solution for 2D and 3D data [PDF]

open access: yes, 2010
This paper is concerned with the uniqueness of the solution of a nonlinear equation, named discrepancy equation. For the restoration problem of data corrupted by Poisson noise, we have to minimize an objective function that combines a data-fidelity ...
Ruggiero, Valeria, Bonettini, Silvia
core  

Optimal order yielding discrepancy principle for simplified regularization in Hilbert scales: finite-dimensional realizations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
Simplified regularization using finite-dimensional approximations in the setting of Hilbert scales has been considered for obtaining stable approximate solutions to ill-posed operator equations.
Santhosh George, M. Thamban Nair
doaj   +1 more source

Infant Embryonal CNS Tumors: Molecular Insights and Treatment Considerations for Contemporary Pediatric Neuro‐Oncology

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Embryonal tumors comprise the majority of malignant central nervous system (CNS) neoplasms diagnosed in children under 3 years of age. Compared with their counterparts in older children, these tumors exhibit distinct molecular biology and a more aggressive clinical phenotype, while their management is complicated by the heightened ...
Sudarshawn Damodharan   +3 more
wiley   +1 more source

An Adaptive Parameter Estimation in a BTV Regularized Image Super-Resolution Reconstruction

open access: yesAdvances in Electrical and Computer Engineering, 2017
Access to the fine spatial resolution has always been a hotspot in digital imaging. One way to improve resolution is to use signal post-processing techniques. In this study, an improved multi-frame image super-resolution (SR) algorithm is proposed. The
MOFIDI, M., HAJGHASSEM, H., AFIFI, A.
doaj   +1 more source

Research Paper: The Effect of the Generalized Uncertainty Principle with Maximum Length on the Size of White Dwarfs [PDF]

open access: yesفیزیک کاربردی ایران
The challenge in developing a theory of quantum gravity stems from the fundamentally different ways the two theories describe physical systems. Quantum mechanics operates on discrete, probabilistic principles, while general relativity is a continuous ...
Sajad Parsamehr
doaj   +1 more source

PRINCIPLE OF SUBSTANCE OVER FORM FOR ENSURING THE RIGHTS OF TAXPAYERS

open access: yesJurisprudencija, 2020
This article examines the theoretical aspects and issues of applying the principle of content over form for ensuring the rights of taxpayers or in favor of taxpayers, and seeks to answer the question of where the borders of this principle lie.
Vilma Vildžiūnaitė
doaj   +1 more source

Ewing Sarcoma in Infants and Children Under 2 Years of Age: A French Retrospective Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Ewing sarcoma, the second most common primary bone cancer in children, requires intensive treatment that may lead to significant long‐term sequelae, particularly in infants. We retrospectively analyzed data from 1621 French patients treated between 1988 and 2015 within the EW88/93/97 or EE99 trials, focusing on 17 infants diagnosed before 24 ...
Elodie Verdier   +18 more
wiley   +1 more source

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