Results 71 to 80 of about 1,809,211 (228)

Bounds on Toeplitz Determinant for Starlike Functions with Respect to Conjugate Points

International Journal of Analysis and Applications, 2021
This paper is concerned with the estimate of the upper bounds of the Toeplitz determinants |T2(3)| and |T3(3)| for functions belonging to the subclass of starlike functions with respect to conjugate points.
Daud Mohamad, Nur Hazwani Aqilah Abdul Wahid   +1 more
doaj  

Magnetic Dual‐Layer Equivalent Sources on the Sphere

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract The equivalent source method is widely used for processing and interpolating magnetic data, particularly in airborne surveys. However, implementations based on Cartesian coordinates present limitations at regional and global scales, where Earth curvature introduces geometric inconsistencies that affect data integration and modeling accuracy ...
Arthur Siqueira‐Macedo, Leonardo Uieda, India Uppal   +2 more
wiley   +1 more source

Asymptotic Behaviors of Modified Block Toeplitz Determinant [PDF]

Progress of Theoretical Physics, 1990
Some formulas are given for the asymptotic form of NXN modified block Toeplitz determinants for large N. These formulas are useful in obtaining the asymptotic behaviors of the correlation function of two spins of the Ising model on a two-dimensional regular lattice when the two spins are not on an axis.
Tanaka, Kazuyuki, Morita, Tohru
openaire   +1 more source

Hankel and Toeplitz Determinants of Logarithmic Coefficients of Inverse Functions for the Subclass of Starlike Functions with Respect to Symmetric Conjugate Points

European Journal of Pure and Applied Mathematics
This paper focuses on finding the upper bounds of the second Hankel and Toeplitz determinants, whose entries are logarithmic coefficients of inverse functions for a new subclass of starlike functions with respect to symmetric conjugate points associated ...
N. Hazwani, A. Wahid, A. Tumiran, T. G. Shaba   +3 more
semanticscholar   +1 more source

"Upper bounds of Toeplitz determinants for a subclass of alpha-close-to-convex functions"

Creative Mathematics and Informatics, 2022
"Let A be the class of P analytic functions in the unit disc U which are of the form $f(z)=z+\sum_{n=2}^{\infty}a_nz^n$. For 0 ≤ α < 1, let C_α, be the class of all functions f ∈ A satisfying the condition ${Re}{f'(z)+αzf''(z)}>0$.
A. Jha, P. Sahoo
semanticscholar   +1 more source

Geometry of essential matrix ranges and the Smith–Ward problem for operator systems

Bulletin of the London Mathematical Society, Volume 58, Issue 9, September 2026.
Abstract A d$d$‐tuple of bounded linear selfadjoint operators acting on an infinite‐dimensional separable Hilbert space is said to have the Smith–Ward property if the identity map of the image of the operator system in the Calkin algebra has a completely positive lift.
Douglas Farenick, Chi‐Kwong Li, Sushil Singla   +2 more
wiley   +1 more source

On Matrix‐Based Cryptography Using Matrix Norm and Special Integer Sequences

Mathematische Nachrichten, Volume 299, Issue 8, Page 2087-2102, August 2026.
ABSTRACT In this paper, a novel matrix‐based encryption approach based on the Affine Hill cipher is presented. The key matrix is constructed using the Narayana integer sequence, and the Frobenius norm of the key matrix is used as a scaling factor in the key construction.
Melih Göcen, Sümeyye Hacer Büyükakyol   +1 more
wiley   +1 more source

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
core   +1 more source

Multiple phases in a generalized Gross-Witten-Wadia matrix model

Journal of High Energy Physics, 2020
We study a unitary matrix model of the Gross-Witten-Wadia type, extended with the addition of characteristic polynomial insertions. The model interpolates between solvable unitary matrix models and is the unitary counterpart of a deformed Cauchy ensemble.
Jorge G. Russo, Miguel Tierz
doaj   +1 more source

Fourth Toeplitz Determinants for Starlike Functions Defined by Using the Sine Function

Journal of Function Spaces, 2021
In this article, we aim to study the upper bounds of the fourth Toeplitz determinant T42 for the function class Ss∗, which are connected with the sine function.
Hai-Yan Zhang, Huo Tang
doaj   +1 more source