Results 261 to 270 of about 3,887,998 (294)
Some of the next articles are maybe not open access.
Companions of the inequalities of Fejér--Jackson and Young
Analysis Mathematica, 2005zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Alzer, H. +3 more
openaire +3 more sources
Weighted Young Inequalities for Convolutions
Southeast Asian Bulletin of Mathematics, 2003Let \(1 < p, q < \infty\) and let \(u\) and \(v\) be weighted functions on \(\mathbb R^n\). The aim of the paper is to find sufficient conditions for the validity of the inequality \[ \Bigl(\int_{\mathbb R^n} (g \times f)^q (x)\, u (x) \, dx\Bigr)^{1/q} \leq C \| g\| _X \Bigl(\int_{\mathbb R^n} f (x)^p \, v (x) \, dx\Bigr)^{1/p} \] for all measurable ...
openaire +1 more source
Further refinements of Young’s type inequality for positive linear maps
RACSAM, 2021M. Ighachane, M. Akkouchi
semanticscholar +2 more sources
REMARKS ON THE HAUSDORFF-YOUNG INEQUALITY
2000zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +2 more sources
Characterization of the trace by Young's inequality
2005Let \(\varphi\) be a positive linear functional on the algebra of complex matrices of order \(n\) and \(p, q\) be positive numbers such that \(1/p + 1/q = 1\). It is shown that if \(\varphi(| AB| ) \leqslant (1/p) \varphi(A^p)+(1/q) \varphi(B^q)\) holds for any positive semi-definite matrices \(A, B\), then \(\varphi\) is a positive scalar multiple of ...
Bikchentaev A., Tikhonov O.
openaire +3 more sources
1995
Let p, q > 0 satisfy 1/p + 1/q = 1. We prove that for any pair A, B of n × n complex matrices there is a unitary matrix U, depending on A, B, such that $$U*\left| {AB*} \right|U \leqslant {\left| A \right|^p}/p + {\left| B \right|^q}/q.$$
openaire +1 more source
Let p, q > 0 satisfy 1/p + 1/q = 1. We prove that for any pair A, B of n × n complex matrices there is a unitary matrix U, depending on A, B, such that $$U*\left| {AB*} \right|U \leqslant {\left| A \right|^p}/p + {\left| B \right|^q}/q.$$
openaire +1 more source
Sharpness in Young's Inequality for Convolution Products
Canadian Journal of Mathematics, 1994AbstractSuppose that Gis a locally compact group with modular function Δ and that p, q, r are three numbers in the interval (l,∞) satisfying. If cp,q(G) is the smallest constant c such thatfor all functions f, g ∈ Cc(G) (here the convolution product is with respect to left Haar measure andis the exponent which is conjugate to p) then Young's inequality
openaire +2 more sources
A Class of Hilbert-Type Inequalities Obtained Via the Improved Young Inequality
, 2017M. Krnić, P. Vuković
semanticscholar +1 more source
Presentation of Young's inequality [PDF]
Journal of inequalities and special functions, 2015 The paper presents different forms of Young's inequality. Main results include generalizations of the discrete and integral form. Issues on inequalities are studied using the geometric-arithmetic mean inequality, integral method and Jensen's inequality. A functional approach to Young's inequality is also considered.
openaire +1 more source