Results 51 to 60 of about 31,019,635 (353)

Solving Sparse Integer Linear Systems [PDF]

open access: yes, 2006
We propose a new algorithm to solve sparse linear systems of equations over the integers. This algorithm is based on a $p$-adic lifting technique combined with the use of block matrices with structured blocks.
Eberly, Wayne   +4 more
core   +4 more sources

Solving Random Quadratic Systems of Equations Is Nearly as Easy as Solving Linear Systems [PDF]

open access: yesNeural Information Processing Systems, 2015
We consider the fundamental problem of solving quadratic systems of equations in yi=|〈ai,x〉|2, i=1,…,m , and x∈ℝn is unknown. We propose a novel method, which starts with an initial guess computed by means of a spectral method and proceeds by minimizing ...
Yuxin Chen, E. Candès
semanticscholar   +1 more source

Psychosocial Outcomes in Patients With Endocrine Tumor Syndromes: A Systematic Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction The combination of disease manifestations, the familial burden, and varying penetrance of endocrine tumor syndromes (ETSs) is unique. This review aimed to portray and summarize available data on psychosocial outcomes in patients with ETSs and explore gaps and opportunities for future research and care.
Daniël Zwerus   +6 more
wiley   +1 more source

H∞ positive filter-based control for positive linear systems [PDF]

open access: yesArchives of Control Sciences
This paper deals with the design of a positive functional H∞ filter-based controller for positive linear systems subject to bounded energy disturbances. We propose a new approach to numerically compute the controller, which is obtained via a function of ...
Montassar Ezzine   +3 more
doaj   +1 more source

Nutritional and Behavioral Intervention for Long‐Term Childhood Acute Leukemia Survivors With Metabolic Syndrome

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Metabolic syndrome (MetS) is a common complication in survivors of childhood acute lymphoblastic and myeloid leukemia (AL), and a major risk factor for premature cardiovascular disease, type‐2‐diabetes, and metabolic dysfunction‐associated steatotic liver disease (MASLD).
Visentin Sandrine   +10 more
wiley   +1 more source

Application of the Algebraic Extension Method to the Construction of Orthogonal Bases for Partial Digital Convolutions

open access: yesAlgorithms
Mathematical tools have been developed that are analogous to the tool that allows one to reduce the description of linear systems in terms of convolution operations to a description in terms of amplitude-frequency characteristics.
Aruzhan Kadyrzhan   +3 more
doaj   +1 more source

Computing the L∞-Induced Norm of LTI Systems: Generalization of Piecewise Quadratic and Cubic Approximations

open access: yesIEEE Access, 2020
This paper is concerned with performance analysis for bounded persistent disturbances of continuous-time linear time-invariant (LTI) systems. Such an analysis can be done by computing the L∞-induced norm of continuous-time LTI systems since it ...
Jung Hoon Kim   +2 more
doaj   +1 more source

Helical Symmetry in Linear Systems

open access: yes, 2007
We investigate properties of solutions of the scalar wave equation and Maxwell's equations on Minkowski space with helical symmetry. Existence of local and global solutions with this symmetry is demonstrated with and without sources.
F. Rohrlich   +4 more
core   +1 more source

Generic perturbations of linear integrable Hamiltonian systems [PDF]

open access: yes, 2015
In this paper, we investigate perturbations of linear integrable Hamiltonian systems, with the aim of establishing results in the spirit of the KAM theorem (preservation of invariant tori), the Nekhoroshev theorem (stability of the action variables for a
A. Bounemoura   +26 more
core   +4 more sources

Survival for Children Diagnosed With Wilms Tumour (2012–2022) Registered in the UK and Ireland Improving Population Outcomes for Renal Tumours of Childhood (IMPORT) Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background The Improving Population Outcomes for Renal Tumours of childhood (IMPORT) is a prospective clinical observational study capturing detailed demographic and outcome data on children and young people diagnosed with renal tumours in the United Kingdom and the Republic of Ireland.
Naomi Ssenyonga   +56 more
wiley   +1 more source

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