Results 41 to 50 of about 651,067 (291)
Joint Sparsity-Based Range-Angle-Dependent Beampattern Synthesis for Frequency Diverse Array
IEEE Access, 2017 For frequency diverse array (FDA) range-angle-dependent beampattern synthesis, the objective is to obtain the desired beampattern performance using fewer antenna elements or smaller aperture.
Hui Chen, Huai-Zong Shao, Wen-Qin Wang
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Experimental studies on the shear resistance of original coal-shale joint [PDF]
, 2017 Purpose. Experimental study and theoretical modeling of the shear resistance of original coal-shale joint. Methods. A two-segment model was developed to describe the shear resistance-shear displacement curves obtained from the direct shear tests of ...
Dong, H, Guo, B, Wang, L
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Moment of a subspace and joint numerical range
Linear and Multilinear Algebra, 2022 For a given complex finite dimensional subspace $S$ of $\mathbb{C}^n$ and a fixed basis, we study the compact and convex subset of $\left(\mathbb{R}_{\geq 0}\right)^n$ that we call the moment of $S$ $m_S=$ convex hull ($\{|s|^2\in\mathbb{R}^n_{\geq 0}: s\in S \wedge \|s\|=1\} )$ $\simeq \{ Diag(Y) \in M_n^h(\mathbb{C}):Y\geq 0, tr(Y)=1, P_S Y P_S=Y ...
Klobouk, Abel Horacio, Varela, Alejandro
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Joint numerical ranges and compressions of powers of operators [PDF]
Journal of the London Mathematical Society, 2017 We identify subsets of the joint numerical range of an operator tuple in terms of its joint spectrum. This result helps us to transfer weak convergence of operator orbits into certain approximation and interpolation properties for powers in the uniform operator topology.
Müller, V. (Vladimír), Tomilov, Y.
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New Results on Boas–Bellman-Type Inequalities in Semi-Hilbert Spaces with Applications
Axioms, 2023 In this article, we investigate new findings on Boas–Bellman-type inequalities in semi-Hilbert spaces. These spaces are generated by semi-inner products induced by positive and positive semidefinite operators.
Najla Altwaijry +2 more
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Strict convexity of the joint c-numerical range
Linear Algebra and its Applications, 2013 Let \(H_{n}\) be the real vector space of \(n\times n\) complex Hermitian matrices. For any \(c=(c_{1},c_{2},\dots,c_{n})\in \mathbb R^{n}\) and an ordered \(m\)-tuple \(H=(H_{1},H_{2},\dots,H_{m})\in H_{n}^{m}\), the joint \(c\)-numerical range \(W_{c}(H)\) of \(H\) is defined.
Chien, Mao-Ting, Nakazato, Hiroshi
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Archives of Metallurgy and Materials, 2015 The paper concerns the mathematical and numerical modeling of phase transformations in solid state occurring during welding. The analysis of the influence of heating rate, cooling rate and maximum temperatures of thermal cycles on the kinetics of phase ...
Piekarska W.
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Joint statistics of acceleration and vorticity in fully developed turbulence
, 2005 We report results from a high resolution numerical study of fluid particles transported by a fully developed turbulent flow. Single particle trajectories were followed for a time range spanning more than three decades, from less than a tenth of the ...
Biferale L. +3 more
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A Note on the Joint Numerical Range of a Triple of 4-by-4 Hermitian Matrices
MathematicsWe present the degrees 14, 26 and 30 of the boundary generating surfaces of the joint numerical ranges for triples of 4-by-4 Hermitian matrices. This result completes the missing degrees from a previous study.
MaoTing Chien, Hiroshi Nakazato
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Target Association of Heterogeneous Sensors Based on Nearest-neighbor and Topology
Leida xuebao, 2012 A new data association algorithm is proposed in this paper for heterogeneous sensors information fusion system, which consists of Radar and high-dynamic-range IR, based on joint usage of the nearest-neighbor (NN) and the topology similarity. The proposed
Yuan Ding-bo +3 more
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