نتایج جستجو برای: Young inequality

تعداد نتایج: 301478  

Asghar Norouzi Seyd Mahmoud Manjegani,

Inverse Young inequality asserts that if $nu >1$, then $|zw|ge nu|z|^{frac{1}{nu}}+(1-nu)|w|^{frac{1}{1-nu}}$, for all complex numbers $z$ and $w$, and equality holds if and only if $|z|^{frac{1}{nu}}=|w|^{frac{1}{1-nu}}$. In this paper the complex representation of quaternion matrices is applied to establish the inverse Young inequality for matrices of quaternions. Moreover, a necessary and ...

In this   paper,  we   present  some  refinements  of the   famous Young  type  inequality.   As  application  of   our   result, we  obtain  some  matrix inequalities   for   the  Hilbert-Schmidt norm  and   the  trace   norm. The results    obtained   in  this  paper  can  be   viewed   as  refinement  of  the   derived  results   by  H.  Kai  [Young  type  inequalities  for matrices,  J.  Ea...

بلالی, اسماعیل, صادقی, رسول, محمدپور, احمد,

Objective: The leisure time is appeared to be new social area which have been conceptualized and defined as product of modernity within the context of social and cultural changes and increasing consumption culture. The study of leisure time as a socio-cultural process and investigating its distinctions in terms of various patterns of social inequality is a novel interest in the sociology of...

بلالی, اسماعیل, صادقی, رسول, محمدپور, احمد,

Objective: The leisure time is appeared to be new social area which have been conceptualized and defined as product of modernity within the context of social and cultural changes and increasing consumption culture. The study of leisure time as a socio-cultural process and investigating its distinctions in terms of various patterns of social inequality is a novel interest in the sociology of...

Journal: :Demography 2014
Duncan O S Gillespie Meredith V Trotter Shripad D Tuljapurkar

In the past six decades, lifespan inequality has varied greatly within and among countries even while life expectancy has continued to increase. How and why does mortality change generate this diversity? We derive a precise link between changes in age-specific mortality and lifespan inequality, measured as the variance of age at death. Key to this relationship is a young-old threshold age, belo...

Journal: :Journal of Mathematical Inequalities 2019

Journal: :Mathematical Inequalities & Applications 2010

‎Some improvements of Young inequality and its reverse for positive‎ ‎numbers with Kantorovich constant $K(t‎, ‎2)=frac{(1+t)^2}{4t}$‎ ‎are given‎. ‎Using these inequalities some operator inequalities and‎ ‎Hilbert-Schmidt norm versions for matrices are proved‎. ‎In‎ ‎particular‎, ‎it is shown that if $a‎, ‎b$ are positive numbers and‎ ‎$0 leqslant nu leqslant 1,$ then for all integers $ kgeqsl...

Journal: :Journal of Mathematical Inequalities 2011

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