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Characterizations of reverse dynamic weighted Hardy-type inequalities with kernels on time scales
Aequationes Mathematicae ( IF 0.9 ) Pub Date : 2020-10-29 , DOI: 10.1007/s00010-020-00759-6
S. H. Saker , M. M. Osman , D. O’Regan , R. P. Agarwal

In this paper, we establish some conditions on nonnegative rd-continuous weight functions \(u\left( x\right) \) and \(\upsilon \left( x\right) \) which ensure that a reverse dynamic inequality of the form

$$\begin{aligned} \left( \int _{a}^{\infty }f^{p}(x)\upsilon \left( x\right) \Delta x\right) ^{ \frac{1}{p}}\le C\left( \int _{a}^{\infty }u\left( x\right) \left( \int _{a}^{\sigma \left( x\right) }\mathcal {K}\left( \sigma \left( x\right) ,\sigma \left( y\right) \right) f(y)\Delta y\right) ^{q}\Delta x\right) ^{ \frac{1}{q}}, \end{aligned}$$

holds when \(q\le p<0\) and \(0<q\le p<1.\) Corresponding dual results are also obtained. In particular, we prove some reverse dynamic weighted Hardy-type inequalities with kernels on time scales which as special cases contain some generalizations of integral and discrete inequalities due to Beesack and Heinig.



中文翻译:

时间尺度上带有核的反向动态加权Hardy型不等式的刻画

在本文中,我们对非负rd连续权重函数\(u \ left(x \ right)\)\(\ upsilon \ left(x \ right)\)建立一些条件,以确保形成

$$ \ begin {aligned} \ left(\ int _ {a} ^ {\ infty} f ^ {p}(x)\ upsilon \ left(x \ right)\ Delta x \ right)^ {\ frac {1 } {p}} \ le C \ left(\ int _ {a} ^ {\ infty} u \ left(x \ right)\ left(\ int _ {a} ^ {\ sigma \ left(x \ right) } \ mathcal {K} \ left(\ sigma \ left(x \ right),\ sigma \ left(y \ right)\ right)f(y)\ Delta y \ right)^ {q} \ Delta x \ right )^ {\ frac {1} {q}},\ end {aligned} $$

\(q \ le p <0 \)\(0 <q \ le p <1. \)时成立,也可以获得对应的对偶结果。特别是,我们证明了时间尺度上带有核的逆动态加权Hardy型不等式,在特殊情况下,由于Beesack和Heinig的存在,它们包含了积分和离散不等式的一些概括。

更新日期:2020-10-30
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