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Related papers: On Hardy inequalities with a remainder term

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We compute the best constant in functional integral inequality called the Hardy-Leray inequalities for solenoidal vector fields on $\mathbb{R}^N$. This gives a solenoidal improvement of the inequalities whose best constants are known for…

Analysis of PDEs · Mathematics 2023-05-23 Naoki Hamamoto

We find best constants in several dilation invariant integral inequalities involving derivatives of functions. Some of these inequalities are new and some were known without best constants. The contents: 1. Estimate for a quadratic form of…

Analysis of PDEs · Mathematics 2008-03-10 V. Maz'ya , T. Shaposhnikova

We study the fractional Hardy inequality on the integers. We prove the optimality of the Hardy weight and hence affirmatively answer the question of sharpness of the constant.

Analysis of PDEs · Mathematics 2023-07-19 Matthias Keller , Marius Nietschmann

This work focuses on an improved fractional Sobolev inequality with a remainder term involving the Hardy-Littlewood-Sobolev inequality which has been proved recently. By extending a recent result on the standard Laplacian to the fractional…

Functional Analysis · Mathematics 2014-07-16 Gaspard Jankowiak , Van Hoang Nguyen

We investigate the Hardy and Rellich inequalities for classes of antisymmetric and odd functions and general exponent $p$. The obtained constants are better than the classical ones.

Classical Analysis and ODEs · Mathematics 2024-04-30 Michał Kijaczko

We establish magnetic improvements upon the classical Hardy inequality for two specific choices of singular magnetic fields. First, we consider the Aharonov-Bohm field in all dimensions and establish a sharp Hardy-type inequality that takes…

Spectral Theory · Mathematics 2020-08-28 Luca Fanelli , David Krejcirik , Ari Laptev , Luis Vega

We deal with Dirac operators with external homogeneous magnetic fields. Hardy-type inequalities related to these operators are investigated: for a suitable class of transversal magnetic fields, we prove a Hardy inequality with the same best…

Mathematical Physics · Physics 2016-03-24 Luca Fanelli , Luis Vega , Nicola Visciglia

We study the Hardy inequality when the singularity is placed on the boundary of a bounded domain in $\mathbb{R}^n$ that satisfies both an interior and exterior ball condition at the singularity. We obtain the sharp Hardy constant $n^2/4$ in…

Analysis of PDEs · Mathematics 2018-04-06 Gerassimos Barbatis , Stathis Filippas , Achilles Tertikas

We study Hardy inequalities for antisymmetric functions in three different settings: euclidean space, torus and the integer lattice. In particular, we show that under the antisymmetric condition the sharp constant in Hardy inequality…

Functional Analysis · Mathematics 2024-08-14 Shubham Gupta

In this paper we establish improved Hardy and Rellich type inequalities on Riemannian manifold $M$. Furthermore, we also obtain sharp constant for the improved Hardy inequality and explicit constant for the Rellich inequality on hyperbolic…

Analysis of PDEs · Mathematics 2007-05-23 Ismail Kombe , Murad Ozaydin

In this paper, we consider the first order Hardy inequalities using simple equalities. This basic setting not only permits to derive quickly many well-known Hardy inequalities with optimal constants, but also supplies improved or new…

Analysis of PDEs · Mathematics 2021-12-14 Xia Huang , Dong Ye

The best constant in the usual Lp norm inequality for the centered Hardy-Littlewood maximal function on R1 is obtained for the class of all ``peak-shaped'' functions. A positive function on the line is called ``peak-shaped'' if it is…

Functional Analysis · Mathematics 2008-02-03 L. Grafakos , Stephen J. Montgomery-Smith , O. Motrunich

We prove two improved versions of the Hardy-Rellich inequality for the polyharmonic operator $(-\Delta)^m$ involving the distance to the boundary. The first involves an infinite series improvement using logarithmic functions, while the…

Analysis of PDEs · Mathematics 2007-05-23 G. Barbatis

In this paper we continue to advance the theory regarding the Riesz fractional gradient in the calculus of variations and fractional partial differential equations begun in an earlier work of the same name. In particular we here establish…

Functional Analysis · Mathematics 2016-11-23 Daniel Spector , Tien-Tsan Shieh

We improve the classical discrete Hardy inequality for $ 1<p<\infty $ for functions on the natural numbers. For integer values of $ p $ the Hardy weight is an absolutely monotonic function.

Classical Analysis and ODEs · Mathematics 2019-10-09 Florian Fischer , Matthias Keller , Felix Pogorzelski

We prove fractional boundary Hardy's inequality in dimension one for the critical case $sp =1$. Optimality of the inequality is obtained for any $p$. The extra logarithmic correction term appears in usual fashion. We also provide a concrete…

Analysis of PDEs · Mathematics 2024-07-18 Adimurthi , Purbita Jana , Prosenjit Roy

We consider a multidimensional version of an inequality due to Leray as a substitute for Hardy's inequality in the case $p=n\geq2.$ In this paper we provide an optimal Sobolev-type improvement of this substitute, analogous to the…

Functional Analysis · Mathematics 2014-08-01 Georgios Psaradakis , Daniel Spector

For a bounded convex domain \Omega in R^N we prove refined Hardy inequalities that involve the Hardy potential corresponding to the distance to the boundary of \Omega, the volume of $\Omega$, as well as a finite number of sharp logarithmic…

Analysis of PDEs · Mathematics 2007-05-23 G. Barbatis , S. Filippas , A. Tertikas

In this paper, we establish several improved Caffarelli-Kohn-Nirenberg and Hardy-type inequalities. Our main results are divided into two parts. In the first part, we consider the following Caffarelli-Kohn-Nirenberg inequality:…

Analysis of PDEs · Mathematics 2026-01-23 Yuxuan Zhou , Wenming Zou

We investigate the possibility of improving the $p$-Poincar\'e inequality $\|\nabla_{\mathbb{H}^N} u\|_p \ge \Lambda_p \|u\|_p$ on the hyperbolic space, where $p>2$ and $\Lambda_p:=[(N-1)/p]^{p}$ is the best constant for which such…

Functional Analysis · Mathematics 2021-08-11 Elvise Berchio , Lorenzo D'Ambrosio , Debdip Ganguly , Gabriele Grillo