Results 51 to 60 of about 1,809,211 (228)

Sharp inequalities for Hermitian Toeplitz determinants for strongly starlike and strongly convex functions

open access: yesJournal of Mathematical Inequalities, 2021
. Sharp upper and lower bounds are found of the second and third order Hermitian Toeplitz determinants for the classes of strongly starlike and strongly convex functions of order α ( α ∈ [ 0 , 1 ) ).
B. Kowalczyk   +2 more
semanticscholar   +1 more source

Spin-spin correlators on the β/β⋆ boundaries in 2D Ising-like models: Exact analysis through theory of block Toeplitz determinants [PDF]

open access: yesNuclear Physics B
In this work, we investigate quantitative properties of correlation functions on the boundaries between two 2D Ising-like models with dual parameters $\beta$ and $\beta^{\star}$.
Yi-Zhuang Liu
semanticscholar   +1 more source

Sharp Bounds of Hermitian Toeplitz Determinants for Bounded Turning Functions

open access: yesSymmetry
Hermitian Toeplitz determinants are used in multiple disciplines, including functional analysis, applied mathematics, physics, and engineering sciences. We calculate the sharp upper and lower bounds on the fourth-order Hermitian Toeplitz determinant for ...
Wahid Ullah   +3 more
semanticscholar   +1 more source

Hermitian-Toeplitz determinants and some coefficient functionals for the starlike functions

open access: yesApplied Mathematics, 2022
In this paper, we have determined the sharp lower and upper bounds on the fourth-order Hermitian-Toeplitz determinant for starlike functions with real coefficients.
Deepak Kumar, Virendra Kumar, L. Das
semanticscholar   +1 more source

COEFFICIENT INEQUALITY FOR MULTIVALENT BOUNDED TURNING FUNCTIONS OF ORDER α

open access: yesПроблемы анализа, 2016
The objective of this paper is to obtain the sharp upper bound to the H_2(p + 1), second Hankel determinant for p-valent (multivalent) analytic bounded turning functions (also called functions whose derivatives have positive real parts) of order α (0 ≤ α
D. Vamshee Krishna, T. RamReddy
doaj   +1 more source

Hermitian-Toeplitz determinants for functions with bounded turning

open access: yesTurkish Journal of Mathematics, 2021
: There is a rich literature on estimation of second and third Hankel determinants for normalised analytic functions in geometric function theory. It is also, therefore, natural to explore the concept of the Hermitian–Toeplitz determinants for such ...
Virendra Kumar, N. Cho
semanticscholar   +1 more source

Signal Extraction and Clustering of Partial Discharge in Motor Insulation Using Temporal Correlation‐Based Clustering

open access: yesHigh Voltage, EarlyView.
ABSTRACT As one of the important links in energy transition and global energy interconnection, electric vehicles (EVs) are becoming increasingly major research topics in the field of energy. Partial discharge (PD) identification under repetitive impulsive voltages plays a pivotal role in evaluating the health of electric vehicle (EV) motor insulation ...
Li Wang   +7 more
wiley   +1 more source

Inverses and Determinants of Toeplitz-Hessenberg Matrices [PDF]

open access: yesTaiwanese Journal of Mathematics, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Asymptotics of Toeplitz, Hankel, and Toeplitz+Hankel determinants with Fisher-Hartwig singularities [PDF]

open access: yesAnnals of Mathematics, 2011
43 pages, 3 figures, extended ...
Deift, P, Its, A, Krasovsky, I
openaire   +3 more sources

Changes in External Developmental Assets Across Adolescence in Low‐Income Urban Youth

open access: yesSocial Development, Volume 35, Issue 4, November 2026.
ABSTRACT This study investigated longitudinal changes in external developmental assets (EDA)—support, empowerment, boundaries & expectations across ecological and interpersonal contexts of family, peers, school, and neighborhood—among predominantly Black, low‐income urban adolescents. A birth cohort of 367 adolescents (47% male) was assessed at ages 12,
Meeyoung O. Min   +3 more
wiley   +1 more source

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