نتایج جستجو برای: best constant factor

تعداد نتایج: 1387892  

Journal: :Journal of Research of the National Bureau of Standards 1940

Journal: :Engineering Fracture Mechanics 1977

2012
Qiliang Huang Bicheng Yang

* Correspondence: qlhuang@yeah. net Department of Mathematics, Guangdong University of Education, Guangzhou, Guangdong 510303, People’s Republic of China Abstract By using the way of weight coefficients and the idea of introducing parameters and by means of Hadamard’s inequality, we give a more accurate half-discrete Hilbert’s inequality with a best constant factor. We also consider its best ex...

Journal: :Symmetry 2022

By introducing several independent parameters, according to the structural symmetry of quasi-homogeneous kernels and Hilbert-type inequality, using weight function method, parameter conditions optimal n-multiple series inequality with are discussed, equivalent expression formula best constant factor obtained. As applications, some special symmetric inequalities given.

Journal: :Mathematische Annalen 2023

\begin{abstract} In this paper we address the problem of finding best constants in inequalities form: $$ \|\big(|P_+f|^s+|P_-f|^s\big)^{\frac{1}{s}}\|_{L^p({\mathbb{T}})}\leq A_{p,s} \|f\|_{L^p({\mathbb{T}})},$$ where $P_+f$ and $P_-f$ denote analytic co-analytic projection a complex-valued function $f \in L^p({\mathbb{T}}),$ for $p \geq 2$ all $s>0$, thus proving Hollenbeck-Verbitsky conjectur...

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