Results 31 to 40 of about 518,086 (284)

A New Inverse Eigenvalue Problem for Jacobi Matrices and Corresponding Mass-Spring System

open access: yesپژوهش‌های ریاضی, 2020
Introduction Many problems in sciences and engineering can be studied by mathematical models. These models are classified as direct problems and inverse problems.
Hanif Mirzaei
doaj  

Inverse spectral problem of a class of fourth-order eigenparameter-dependent boundary value problems

open access: yesAdvances in Difference Equations, 2020
This paper deals with a class of inverse spectral problems of fourth-order boundary value problems with eigenparameter-dependent boundary conditions.
Ji-jun Ao, Liang Zhang
doaj   +1 more source

Superfast Line Spectral Estimation [PDF]

open access: yes, 2018
A number of recent works have proposed to solve the line spectral estimation problem by applying off-the-grid extensions of sparse estimation techniques.
Fleury, Bernard Henri   +2 more
core   +3 more sources

Spectral Clustering Community Detection Algorithm Based on Point-Wise Mutual Information Graph Kernel

open access: yesEntropy, 2023
To address the problem that traditional spectral clustering algorithms cannot obtain the complete structural information of networks, this paper proposes a spectral clustering community detection algorithm, PMIK-SC, based on the point-wise mutual ...
Yinan Chen, Wenbin Ye, Dong Li
doaj   +1 more source

A case of mu-synthesis as a quadratic semidefinite program

open access: yes, 2013
We analyse a special case of the robust stabilization problem under structured uncertainty. We obtain a new criterion for the solvability of the spectral Nevanlinna-Pick problem, which is a special case of the $\mu$-synthesis problem of $H^\infty ...
Agler, Jim, Lykova, Z. A., Young, N. J.
core   +1 more source

Toric networks, geometric $R$-matrices and generalized discrete Toda lattices

open access: yes, 2016
We use the combinatorics of toric networks and the double affine geometric $R$-matrix to define a three-parameter family of generalizations of the discrete Toda lattice. We construct the integrals of motion and a spectral map for this system.
Inoue, Rei   +2 more
core   +1 more source

Transfer matrix spectrum for cyclic representations of the 6-vertex reflection algebra II

open access: yesSciPost Physics, 2018
This article is a direct continuation of [1] where we begun the study of the transfer matrix spectral problem for the cyclic representations of the trigonometric 6-vertex reflection algebra associated to the Bazhanov-Stroganov Lax operator.
J. M. Maillet, G. Niccoli, B. Pezelier
doaj   +1 more source

Inverse spectral problems for linear and quadratic matrix pencils

open access: yesLinear Algebra and its Applications, 1988
Results proved include a reconstruction of a Hermitian matrix pencil from its Jordan structure and inverse spectral theorems for real regular linear matrix pencils. Some questions of the first author and \textit{J. Maroulas} [J. Math. Anal. Appl. 123, 238-261 (1987; Zbl 0637.34017)], on the freedom of choice in the definition of spectral properties of ...
Lancaster, Peter, Ye, Qiang
openaire   +1 more source

Identification of serum protein biomarkers for pre‐cancerous lesions associated with pancreatic ductal adenocarcinoma

open access: yesMolecular Oncology, EarlyView.
This work identified serum proteins associated with pancreatic epithelial neoplasms (PanINs) and early‐stage PDAC. Proteomics screens assessed genetically engineered mice with abundant PanINs, KPC mice (Lox‐STOP‐Lox‐KrasG12D/+ Lox‐STOP‐Lox‐Trp53R172H/+ Pdx1‐Cre) before PDAC development and also early‐stage PDAC patients (n = 31), compared to benign ...
Hannah Mearns   +10 more
wiley   +1 more source

Patterns of Postictal Abnormalities in Relation to Status Epilepticus in Adults

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Abnormalities on peri‐ictal diffusion‐weighted magnetic resonance imaging (DWI‐PMAs) are well‐established for patients with status epilepticus (SE), but knowledge on patterns of DWI‐PMAs and their prognostic impact is sparse. Methods This systematic review and individual participant data meta‐analysis included observational studies ...
Andrea Enerstad Bolle   +11 more
wiley   +1 more source

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