Results 111 to 120 of about 8,275 (212)
Certain inequalities related with Hankel and Toeplitz determinant for q-starlike functions
In the present article, we prove the sharp upper bounds for the second order Hankel determinants |H2(1)|,|H2(2)| and related functionals |a2a3−a4|, |a2a5−a3a4| for q-starlike functions.
Ihtesham Gul+3 more
doaj
Hankel Determinants for the Logarithmic Coefficients of a Subclass of Close-to-Star Functions
Suppose that ST1 is a class of close-to-star functions. In this paper, we investigated the estimate of Zalcman functional on the logarithmic coefficients and the third Hankel determinant for the class ST1 with the determinant entry of logarithmic ...
Dong Guo+4 more
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Direct Connection between the RII Chain and the Nonautonomous Discrete Modified KdV Lattice
The spectral transformation technique for symmetric RII polynomials is developed. Use of this technique reveals that the nonautonomous discrete modified KdV (nd-mKdV) lattice is directly connected with the RII chain.
Kazuki Maeda, Satoshi Tsujimoto
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Continued fraction expansions of Herglotz-Nevanlinna functions and generalized indefinite strings of Stieltjes type. [PDF]
Eckhardt J.
europepmc +1 more source
Asymptotic Formulas for Determinants of a Sum of Finite Toeplitz and Hankel Matrices [PDF]
Estelle Basor, Torsten Ehrhardt
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Hankel Determinant for a Class of Analytic Functions Related with Lemniscate of Bernoulli
The object of the present investigation is to solve Fekete-Szegö problem and determine the sharp upper bound to the second Hankel determinant for a new class R of analytic functions in the unit disk.
Ashok Kumar Sahoo, Jagannath Patel
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Fast Approximations of the Jeffreys Divergence between Univariate Gaussian Mixtures via Mixture Conversions to Exponential-Polynomial Distributions. [PDF]
Nielsen F.
europepmc +1 more source