Results 21 to 30 of about 24,633 (240)

Integral inequalities for s-convex functions via generalized conformable fractional integral operators

open access: yesAdvances in Difference Equations, 2020
We introduce new operators, the so-called left and right generalized conformable fractional integral operators. By using these operators we establish new Hermite–Hadamard inequalities for s-convex functions and products of two s-convex functions in the ...
Artion Kashuri   +4 more
doaj   +1 more source

Some Hermite-Hadamard Type Inequalities for Harmonically s-Convex Functions

open access: yesThe Scientific World Journal, 2014
We establish some estimates of the right-hand side of Hermite-Hadamard type inequalities for functions whose derivatives absolute values are harmonically s-convex.
Feixiang Chen, Shanhe Wu
doaj   +1 more source

The Application of Generalized Quasi-Hadamard Products of Certain Subclasses of Analytic Functions with Negative and Missing Coefficients

open access: yesMathematics, 2019
In this paper, we introduce a new generalized differential operator using a new generalized quasi-Hadamard product, and certain new classes of analytic functions using subordination.
En Ao, Shuhai Li
doaj   +1 more source

On Some Matrix Trace Inequalities

open access: yesJournal of Inequalities and Applications, 2010
We first present an inequality for the Frobenius norm of the Hadamard product of two any square matrices and positive semidefinite matrices. Then, we obtain a trace inequality for products of two positive semidefinite block matrices by using 2×2 ...
Ramazan Türkmen   +1 more
doaj   +2 more sources

On Hadamard products of linear varieties [PDF]

open access: yesJournal of Algebra and Its Applications, 2016
In this paper, we address the Hadamard product of linear varieties not necessarily in general position. In [Formula: see text], we obtain a complete description of the possible outcomes. In particular, in the case of two disjoint finite sets [Formula: see text] and [Formula: see text] of collinear points, we get conditions for [Formula: see text] to ...
Bocci Cristiano   +3 more
openaire   +4 more sources

New Subclasses of Multivalent Analytic Functions Associated with a Linear Operator

open access: yesAbstract and Applied Analysis, 2013
Making use of a linear operator, which is defined here by means of the Hadamard product (or convolution), we consider two subclasses and of multivalent analytic functions with negative coefficients in the open unit disk. Some modified Hadamard products,
Ding-Gong Yang, Jin-Lin Liu
doaj   +1 more source

Complex Hadamard Matrices contained in a Bose–Mesner algebra

open access: yesSpecial Matrices, 2015
Acomplex Hadamard matrix is a square matrix H with complex entries of absolute value 1 satisfying HH* = nI, where * stands for the Hermitian transpose and I is the identity matrix of order n.
Ikuta Takuya, Munemasa Akihiro
doaj   +1 more source

On Geometric Circulant Matrices Whose Entries are Bi-Periodic Fibonacci and Bi-Periodic Lucas Numbers

open access: yesUniversal Journal of Mathematics and Applications, 2020
In this study, we obtain upper and lower bounds for the spectral norms of the geometric circulant matrices with the bi--periodic Fibonacci numbers and bi--periodic Lucas numbers, respectively.
Emrah Polatlı
doaj   +1 more source

CERTAIN SUBCLASSES OF MEROMORPHICALLY P-VALENT FUNCTIONS WITH POSITVE OR NEGATIVE COEFICIENTS USING DIFFERENTIAL OPERATOR

open access: yesTikrit Journal of Pure Science, 2023
In this paper, we have introduced two subclasses  and  of meromorphically p-valent functions with positive and negative coefficients, defined by differential operator in the punctured unit disk  and obtain some sharp results including coefficient ...
Hazha Zirar Hussain
doaj   +1 more source

On the mean values of L-functions in orthogonal and symplectic families

open access: yes, 2008
Hybrid Euler-Hadamard products have previously been studied for the Riemann zeta function on its critical line and for Dirichlet L-functions in the context of the calculation of moments and connections with Random Matrix Theory.
Bui, H. M., Keating, J. P.
core   +1 more source

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