Results 21 to 30 of about 359 (228)

Young’s inequality and trace

open access: yesLinear Algebra and its Applications, 2009
Let \(M_{n}({\mathbb C})\) be the set of all complex \(n\)-square matrices. The modulus \((X^{\ast }X)^{1/2}\) of \(X\in M_{n}\) is written as \(|X|\). Let \(h=h(t):[0,\infty )\rightarrow [ 0,\infty )\) be strictly increasing, continuous function with \( h(0)=0\) and \(h(t)\rightarrow \infty \) as \(t\rightarrow \infty \).
Cho, Kazuki, Sano, Takashi
openaire   +1 more source

On further refinements for Young inequalities

open access: yesOpen Mathematics, 2018
In this paper sharp results on operator Young’s inequality are obtained. We first obtain sharp multiplicative refinements and reverses for the operator Young’s inequality.
Furuichi Shigeru, Moradi Hamid Reza
doaj   +1 more source

Multiple-Term Refinements of Young Type Inequalities

open access: yesJournal of Mathematics, 2016
Recently, a multiple-term refinement of Young’s inequality has been proved. In this paper, we show its reverse refinement. Moreover, we will present multiple-term refinements of Young’s inequality involving Kantorovich constants.
Daeshik Choi
doaj   +1 more source

Decay estimate in a viscoelastic plate equation with past history, nonlinear damping, and logarithmic nonlinearity

open access: yesBoundary Value Problems, 2022
In this article, we consider a viscoelastic plate equation with past history, nonlinear damping, and logarithmic nonlinearity. We prove explicit and general decay rate results of the solution to the viscoelastic plate equation with past history.
Bhargav Kumar Kakumani   +1 more
doaj   +1 more source

Sharpness in Young’s inequality for convolution [PDF]

open access: yesPacific Journal of Mathematics, 1977
Summary: Let \(p\) and \(q\) be indices in the open interval \((1,\infty)\) such that \(pq < p+q\); let \(r = pq/(p+q-pq)\). It is shown here that there is a constant \(C_{p,q} < 1\) such that, if \(G\) is a locally compact, unimodular group with no compact open subgroups, and if \(g\) and \(f\) are functions in \(L^p(G)\) and \(L^q(G)\) respectively ...
openaire   +2 more sources

Conceptualising quality early childhood education: Learning from young children in Brazil and South Africa through creative and play‐based methods

open access: yesBritish Educational Research Journal, EarlyView., 2023
Abstract Early childhood has increasingly been acknowledged as a vital time for all children. Inclusive and quality education is part of the United Nations Sustainable Development Goals, with the further specification that all children have access to quality pre‐primary education.
Laura H. V. Wright   +8 more
wiley   +1 more source

New progress on the operator inequalities involving improved Young’s and its reverse inequalities relating to the Kantorovich constant

open access: yesJournal of Inequalities and Applications, 2017
The purpose of this paper is to give a survey of the progress, advantages and limitations of various operator inequalities involving improved Young’s and its reverse inequalities related to the Kittaneh-Manasrah inequality.
Jie Zhang, Junliang Wu
doaj   +1 more source

On new general versions of Hermite–Hadamard type integral inequalities via fractional integral operators with Mittag-Leffler kernel

open access: yesJournal of Inequalities and Applications, 2021
The main motivation of this study is to bring together the field of inequalities with fractional integral operators, which are the focus of attention among fractional integral operators with their features and frequency of use.
Havva Kavurmacı Önalan   +3 more
doaj   +1 more source

Jessen's functional, its properties and applications

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2012
In this paper we consider Jessen's functional, defined by means of a positive isotonic linear functional, and investigate its properties. Derived results are then applied to weighted generalized power means, which yields extensions of some recent results,
Lovričević Neda   +2 more
doaj   +1 more source

Robust Control of a Class of Nonlinear Discrete-Time Systems: Design and Experimental Results on a Real-Time Emulator

open access: yesActuators, 2021
The aim of this study is to develop a new observer-based stabilization strategy for a class of Lipschitz uncertain systems. This new strategy improves the performances of existing methods and ensures better convergence conditions. Sliding window approach
Noussaiba Gasmi   +4 more
doaj   +1 more source

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