Results 61 to 70 of about 26,813 (231)

Optimal choice of Hankel-block-Hankel matrix shape in 2-D parameter estimation: the rank-one case

, 2016
Revised version.International audienceIn this paper we analyse the performance of 2-D ESPRIT method for estimating parameters of 2-D superimposed damped exponentials.
Comon, Pierre, Sahnoun, Souleymen, Usevich, Konstantin   +2 more
core   +2 more sources

A block Hankel generalized confluent Vandermonde matrix

Linear Algebra and its Applications, 2014
Vandermonde matrices are well known. They have a number of interesting properties and play a role in (Lagrange) interpolation problems, partial fraction expansions, and finding solutions to linear ordinary differential equations, to mention just a few applications.
Klein, A., Spreij, P.
openaire   +4 more sources

Identifying Out‐of‐Voxel Echoes in Edited MRS With Phase Cycle Inversion

Magnetic Resonance in Medicine, Volume 95, Issue 4, Page 1921-1933, April 2026.
ABSTRACT Purpose To identify the origin of out‐of‐voxel (OOV) signals based on the coherence transfer pathway (CTP) formalism using signal phase conferred by the acquisition phase cycling scheme. Knowing the CTP driving OOV artifacts enables optimization of crusher gradients to improve their suppression.
Zahra Shams, Abdelrahman Gad, Aaron T. Gudmundson, Saipavitra Murali‐Manohar, Christopher W. Davies‐Jenkins, Gizeaddis L. Simegn, Dunja Simicic, Yulu Song, Vivek Yedavalli, Helge J. Zöllner, Georg Oeltzschner, Dillip K. Senapati, Alfons Schnitzler, Peter B. Barker, Richard A. E. Edden   +14 more
wiley   +1 more source

Hankel and Toeplitz operators: continuous and discrete representations

, 2016
We find a relation guaranteeing that Hankel operators realized in the space of sequences $\ell^2 ({\Bbb Z}_{+}) $ and in the space of functions $L^2 ({\Bbb R}_{+}) $ are unitarily equivalent.
Yafaev, D. R.
core   +3 more sources

Tackling High Dimensionality in QSP: Guiding Model Order Reduction With Index Analysis

CPT: Pharmacometrics &Systems Pharmacology, Volume 15, Issue 2, February 2026.
ABSTRACT Quantitative systems pharmacology (QSP) models offer a useful platform to integrate drug pharmacology with knowledge about biological mechanisms across multiple scales and data sources into a unified quantitative framework. This makes them invaluable to address many relevant questions in drug research and development.
Johannes Tillil, Wilhelm Huisinga, Jane Knöchel   +2 more
wiley   +1 more source

Some Propositions on Generalized Nevanlinna Functions of the Class Nk

Advances in Mathematical Physics, 2014
Some propositions on the generalized Nevanlinna functions are derived. We indicate mainly that (1) the negative inertia index of a Hermitian generalized Loewner matrix generated by a generalized Nevanlinna function in the class Nκ does not exceed κ. This
Yan-Ping Song, Hui-Feng Hao, Yong-Jian Hu, Gong-Ning Chen   +3 more
doaj   +1 more source

Iron Overload Mediates the Differential Cell Fate of Astrocytes from Neurons and Its Regulatory Mechanisms in Ischemic Stroke

Advanced Science, Volume 13, Issue 4, 19 January 2026.
Upon ischemia/reperfusion‐induced iron overload condition, neurons and astrocytes exhibit similar oxidative stress changes but opposite alterations in endogenous antioxidant defense mechanisms, leading to divergent ferroptotic outcomes. The iron deposition and neuronal loss are increased within the perilesional cortex of stroke patients ...
Yi Guo, Yue Wang, Yong Ni, Bin Bo, Jinzhi He, Yongming Zhu, Aiping Qin, Xianyong Zhou, Huaping Du, Yuan Liu, Tianyao Wang, Yudu Li, Yibo Zhao, Zengai Chen, Zhipei Liang, Yao Li, Yuan Xu, Huiling Zhang   +17 more
wiley   +1 more source

A New Approach to k-Jacobsthal Lucas Sequences

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2021
In this study, 〖CS〗_(k,n) of S_(k,n) Catalan transformation of 𝑘−Jacobsthal-Lucas sequences is defined. S_(k,n) Catalan transformation of 𝑘−Jacobsthal-Lucas S_(k,n) sequences is obtained.In addition the transformation of CS_(k,n) is written as the ...
Hakan Akkuş, Engin Özkan, Rabia Nagehan Üregen   +2 more
doaj   +1 more source

Multiple Hankel matrix rank minimization for audio inpainting

2023 46th International Conference on Telecommunications and Signal Processing (TSP), 2023
Sasaki et al. (2018) presented an efficient audio declipping algorithm, based on the properties of Hankel-structure matrices constructed from time-domain signal blocks. We adapt their approach to solving the audio inpainting problem, where samples are missing in the signal.
Záviška, Pavel, Rajmic, Pavel, Mokrý, Ondřej   +2 more
openaire   +2 more sources

Enhanced Matrix Completion Method for Superresolution Tomography SAR Imaging: First Large-Scale Urban 3-D High-Resolution Results of LT-1 Satellites Using Monostatic Data

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
LuTan-1 (LT-1) constellation is an innovative distributed L-band spaceborne synthetic aperture radar (SAR), which can potentially provide tomographic mapping with twin satellites, i.e., tomographic SAR (TomoSAR) imaging.
Honghao Zhou, Gang Xu, Xiang-Gen Xia, Tao Li, Hanwen Yu, Yanyang Liu, Xiang Zhang, Mengdao Xing, Wei Hong   +8 more
doaj   +1 more source