Results 81 to 90 of about 480 (210)
High Voltage, Volume 11, Issue 3, Page 725-737, June 2026.ABSTRACT The stability analysis of Line Commutated Converter High Voltage Direct Current (LCC‐HVDC) is of considerable engineering importance. Establishing its analytical mathematical model helps to analyse stability and the factors that affect stability of the system.
Juanjuan Wang +6 more
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Toeplitz determinants in one and higher dimensions
Acta Mathematica ScientiaIn this study, we derive the sharp bounds of certain Toeplitz determinants whose entries are the coefficients of holomorphic functions belonging to a class defined on the unit disk $\mathbb{U}$. Further, these results are extended to a class of holomorphic functions on the unit ball in a complex Banach space and on the unit polydisc in $\mathbb{C}^n ...
Giri, Surya, Kumar, S. Sivaprasad
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Asymptotic formulas for Toeplitz determinants [PDF]
Transactions of the American Mathematical Society, 1978 The object of this paper is to find an asymptotic formula for determinants of finite dimensional Toeplitz operators generated by a class of functions with singularities. The formula is a generalization of the Strong Szegö Limit Theorem.
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Asymptotics for Toeplitz determinants: Perturbation of symbols with a gap [PDF]
Journal of Mathematical Physics, 2015 We study the determinants of Toeplitz matrices as the size of the matrices tends to infinity, in the particular case where the symbol has two jump discontinuities and tends to zero on an arc of the unit circle at a sufficiently fast rate. We generalize an asymptotic expansion by Widom [Indiana Univ. Math. J.
Christophe Charlier, Tom Claeys
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Toeplitz and Wiener-Hopf determinants with piecewise continuous symbols [PDF]
, 1983 The asymptotics for determinants of Toeplitz and Wiener-Hopf operators with piecewise continuous symbols are obtained in this paper. If Wα(σ) is the Wiener-Hopf operator defined on L2(0, α) with piecewise continuous symbol σ having a finite number of ...
Widom, Harold, Basor, Estelle
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Mathematics, 2019 In this paper, we study periodic tridiagonal Toeplitz matrices with perturbed corners. By using some matrix transformations, the Schur complement and matrix decompositions techniques, as well as the Sherman-Morrison-Woodbury formula, we derive explicit ...
Yunlan Wei +3 more
doaj +1 more source
Magnetic Resonance in Medicine, Volume 95, Issue 5, Page 2702-2717, May 2026.ABSTRACT Purpose To achieve high resolution (≤ 1 mm isotropic) whole‐brain perfusion imaging at 7 T with next generation ASL pulse sequence, reconstruction algorithm, and MRI hardware. Methods We capitalized on three major innovations: (1) FLASH‐based pseudo‐Continuous ASL (pCASL) sequence with rotated golden‐angle stack‐of‐spirals (rGA‐SoS) sampling; (
Chenyang Zhao +8 more
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On the asymptotics of a Toeplitz determinant with singularities
, 2012 40 pages, 3 ...
P. Deift, A. Its, I. Krasovsky
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Asymptotics of Toeplitz, Hankel, and Toeplitz+Hankel determinants with Fisher-Hartwig singularities [PDF]
Annals of Mathematics, 2011 43 pages, 3 figures, extended ...
Deift, P, Its, A, Krasovsky, I
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Veterinary Medicine and Science, Volume 12, Issue 3, May 2026.Vinasse supplementation at 1.5%–3% enhances nutrient digestibility, ruminal fermentation and production efficiency in early‐lactating Holstein cows. However, without rumen microbial or immune response data, long‐term safety and efficacy require further study.
A. Rahimi +3 more
wiley +1 more source