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Advanced Search Results For "EIGENVALUES"

1 - 10 of 50,578 results for
 "EIGENVALUES"
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Extension of selected configuration interaction for transcorrelated methods.

Publication Type: Academic Journal

Source(s): Journal of Chemical Physics. 10/7/2022, Vol. 157 Issue 13, p1-16. 16p.

Abstract: In this work, we present an extension of popular selected configuration interaction (SCI) algorithms to the Transcorrelated (TC) framework. Although we used in this work the recently introduced one-parameter correlation factor [E. Giner, J. Chem. Phys....

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N-representability of the target density in Frozen-Density Embedding Theory based methods: Numerical significance and its relation to electronic polarization.

Publication Type: Academic Journal

Source(s): Journal of Chemical Physics. 8/14/2022, Vol. 157 Issue 6, p1-10. 10p.

Abstract: The accuracy of any observable derived from multi-scale simulations based on Frozen-Density Embedding Theory (FDET) is affected by two inseparable factors: (i) the approximation for the E xcT nad [ ρ A , ρ B ] component of the FDET energy functional an...

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A perturbative approximation to DFT/MRCI: DFT/MRCI(2).

Publication Type: Academic Journal

Source(s): Journal of Chemical Physics; 10/28/2022, Vol. 157 Issue 16, p1-11, 11p

Abstract: Copyright of Journal of Chemical Physics is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users m...

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Fast Extended Inductive Robust Principal Component Analysis With Optimal Mean.

Publication Type: Academic Journal

Source(s): IEEE Transactions on Knowledge & Data Engineering. Oct2022, Vol. 34 Issue 10, p4812-4825. 14p.

Abstract: Inspired by the mean calculation of RPCA_OM and inductiveness of IRPCA, we first propose an inductive robust principal component analysis method with removing the optimal mean automatically, which is shorted as IRPCA_OM. Furthermore, IRPCA_OM is extend...

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Small‐signal stability assessment based on virtual regional eigenvalue.

Publication Type: Academic Journal

Source(s): IET Generation, Transmission & Distribution (Wiley-Blackwell). Nov2022, Vol. 16 Issue 22, p4575-4588. 14p.

Abstract: Small‐signal stability assessment (SSSA) plays a significant role in large‐scale power systems operation. Since the computational burden and unavailability of the detailed time‐varying model, it is practically difficult to use model‐based approaches to...

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Electromagnetic parameter retrieval technique utilizing eigenvalue analysis and field averaging.

Publication Type: Academic Journal

Source(s): Journal of Applied Physics. 3/21/2022, Vol. 131 Issue 11, p1-22. 22p.

Abstract: In this paper, a fully numerical homogenization technique is presented for the retrieval of the effective constitutive parameters of a periodic composite medium. Based on the eigensolution returned by the utilized field-flux FEM formulation, a proper f...

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Assessing the optimum condition of multivariate second order response surface model through the asymptotic inference of the eigenvalues.

Publication Type: Conference

Source(s): AIP Conference Proceedings. 2022, Vol. 2668 Issue 1, p1-14. 14p.

Abstract: As documented in the literatures of response surface methodology, the optimum condition of a second order response surface model can be assessed by investigating the magnitude of the eigenvalues of the model matrix. In this paper we establish asymptoti...

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Properties of the density functional response kernels and its implications on chemistry.

Publication Type: Academic Journal

Source(s): Journal of Chemical Physics; 9/21/2022, Vol. 157 Issue 11, p1-20, 20p

Abstract: Copyright of Journal of Chemical Physics is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users m...

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Trace minimization method via penalty for linear response eigenvalue problems.

Publication Type: Academic Journal

Source(s): Journal of Industrial & Management Optimization. Jan2023, Vol. 19 Issue 1, p773-791. 19p.

Abstract: In various applications, such as the computation of energy excitation states of electrons and molecules, and the analysis of interstellar clouds, the linear response eigenvalue problem, which is a special type of the Hamiltonian eigenvalue problem, is ...

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Stability Analysis of Coupled-Inductor-Based Buck Converter: Participation Factors Approach.

Publication Type: Academic Journal

Source(s): IEEE Transactions on Industry Applications. Jul/Aug2022, Vol. 58 Issue 4, p4967-4979. 13p.

Abstract: A coupled-inductor-based fourth-order buck converter is introduced in this article. The salient features of this topology are lower source current ripples like in conventional buck converter with input filter, no need of connecting an additional dampin...

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