Results 21 to 30 of about 878,195 (332)
Mathematics, 2023 Herein, we propose a novel model-based simultaneous multi-slice (SMS) reconstruction method by exploiting data-driven parameter modeling for highly accelerated T1 parameter quantification.
Sugil Kim, Hua Wu, Jae-Ho Han
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Gallai-Edmonds decomposition of unicyclic graphs from null space [PDF]
The American Journal of Combinatorics, 2022 In this paper, we compute the Gallai-Edmonds decomposition of a unicyclic graph $G$ using linear algebraic tools. More precisely, the Gallai-Edmonds decomposition of $G$ is obtained from the null space associated with adjacency matrices of its subtrees.
Luiz Emilio Allem +3 more
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Null Darboux Curve Pairs in Minkowski 3-Space
Axioms, 2021 Based on the fundamental theories of null curves in Minkowski 3-space, the null Darboux mate curves of a null curve are defined which can be regarded as a kind of extension for Bertrand curves and Mannheim curves in Minkowski 3-space.
Jinhua Qian +3 more
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Parameter Identifiability for Nonlinear LPV Models
International Journal of Applied Mathematics and Computer Science, 2022 Linear parameter varying (LPV) models are being increasingly used as a bridge between linear and nonlinear models. From a mathematical point of view, a large class of nonlinear models can be rewritten in LPV or quasi-LPV forms easing their analysis. From
Srinivasarengan Krishnan +3 more
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On the structure of the fundamental subspaces of acyclic matrices with 0 in the diagonal
The American Journal of Combinatorics, 2023 A matrix is called acyclic if replacing the diagonal entries with \(0\), and the nonzero diagonal entries with \(1\), yields the adjacency matrix of a forest.
Daniel Jaume, Adrian Pastine
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The Null Space Problem II. Algorithms [PDF]
SIAM Journal on Algebraic Discrete Methods, 1987 [For part I see ibid. 7, 527-537 (1986; Zbl 0608.65024).] Two algorithms are suggested for calculating a sparse basis of the null- space of matrix with full row rank. Each consists of the two phases: first (the combinatorial phase) identifies a minimal dependent set of columns by finding a matching in the bipartite graph of the matrix; second (the ...
Colemann, Thomas F., Pothen, Alex
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On Matrices with Signed Null-Spaces [PDF]
SIAM Journal on Matrix Analysis and Applications, 2002 The authors denote by \(Q(A)\) the set of all matrices with the same sign pattern as \(A\). A matrix \(A\) has signed null-space provided there exists a set \(S\) of sign patterns such that the set of sign patterns of vectors in the null-space of \(\widetilde A\) is \(S\) for each \(\widetilde A\in Q(A)\).
Kim, S. J. +2 more
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The Null Space of Fuzzy Inclusion Measures [PDF]
IEEE Transactions on Fuzzy Systems, 2021 This work is partially supported by TIN2017-84804-R, TIN2016-77356-P (Spanish Ministry of Science and Innovation) and FC-18-GRUPIN-IDI-2018-226 (Regional Ministry of the Principality of Asturias).
Ines Couso +3 more
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On weakly null FDD'S in Banach spaces [PDF]
Israel Journal of Mathematics, 1993 In this paper we show that every sequence (F_n) of finite dimensional subspaces of a real or complex Banach space with increasing dimensions can be ``refined'' to yield an F.D.D. (G_n), still having increasing dimensions, so that either every bounded sequence (x_n), with x_n in G_n for n in N, is weakly null, or every normalized sequence (x_n), with ...
Odell, E. +2 more
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Null-space impedance control of 7-degree-of-freedom redundant manipulators based on the arm angles
International Journal of Advanced Robotic Systems, 2020 An impedance control method in null-space for 7-degree-of-freedom redundant manipulators is presented in this article. The null-space impedance motion of the redundant manipulator was described in the angle domain and a null-space impedance equation was ...
Genliang Xiong, Yang Zhou, Jiankang Yao
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