Results 1 to 10 of about 1,935 (167)
APPROXIMATION OF THE NONLINEAR DEPENDENCIES IN HARMONIC BALANCE EQUATIONS [PDF]
Proceedings on Engineering Sciences, 2023 A new algorithm is presented to reduce computational costs in solving harmonic balance equations obtained by separating state variables. In the author's previous works, an approach was proposed where the vector (matrix) of unknowns is replaced by two ...
Vladimir Lantsov
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The Dual Characterization of Structured and Skewed Structured Singular Values
Mathematics, 2022 The structured singular values and skewed structured singular values are the well-known mathematical quantities and bridge the gap between linear algebra and system theory.
Mutti-Ur Rehman +4 more
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Mathematics, 2023 The μ-value or structured singular value is a prominent mathematical tool to analyze and synthesize both the robustness and performance of time-invariant systems. We establish and analyze new results concerning structured singular values for the Hadamard
Mutti-Ur Rehman +3 more
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Investigating the numerical range and q-numerical range of non square matrices [PDF]
Opuscula Mathematica, 2011 A presentation of numerical ranges for rectangular matrices is undertaken in this paper, introducing two different definitions and elaborating basic properties. Further, we extend to the \(q\)-numerical range.
Aikaterini Aretaki, John Maroulas
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NDF of the Near-Zone Field on a Line Perpendicular to the Source
IEEE Access, 2021 In this paper, the problem of computing the number of degrees of freedom (NDF) of the field radiated by a strip current along all the possible lines orthogonal to the source is addressed.
Rocco Pierri, Raffaele Moretta
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Geophysical Research Letters, 2023 Recent estimates of the crustal thickness of Mars show a bimodal result of either ∼20 or ∼40 km beneath the InSight lander. We propose an approach based on random matrix theory applied to receiver functions (RFs) to further constrain the subsurface ...
Rakshit Joshi +6 more
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On Instability Analysis of Linear Feedback Systems
Computation, 2020 The numerical approximation of the μ -value is key towards the measurement of instability, stability analysis, robustness, and the performance of linear feedback systems in system theory.
Mutti-Ur Rehman, Jehad Alzabut
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On the N-spectrum of oriented graphs
Open Mathematics, 2020 Given any digraph D, its non-negative spectrum (or N-spectrum, shortly) consists of the eigenvalues of the matrix AA T, where A is the adjacency matrix of D.
Abudayah Mohammad +2 more
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Robust Parameter Estimation of an Empirical Manoeuvring Model Using Free-Running Model Tests
Journal of Marine Science and Engineering, 2021 The work presents the identification and validation of the hydrodynamic coefficients for the surge, sway, and yaw motion. This is performed in two ways: using simulated data and free-running test data.
Ana Catarina Costa +2 more
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Variational Quantum Singular Value Decomposition [PDF]
Quantum, 2021 Singular value decomposition is central to many problems in engineering and scientific fields. Several quantum algorithms have been proposed to determine the singular values and their associated singular vectors of a given matrix.
Xin Wang, Zhixin Song, Youle Wang
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