Results 11 to 20 of about 12,592 (145)

Reversed Hardy-Littlewood-Sobolev inequalities with weights on the Heisenberg group

open access: yesAdvances in Nonlinear Analysis, 2023
In this article, we establish some reverse weighted Hardy-Littlewood-Sobolev inequalities on the Heisenberg group. We then show the existence of extremal functions for the above inequalities by combining the subcritical approach and the renormalization ...
Hu Yunyun
doaj   +2 more sources

Generalising the Hardy-Littlewood Method for Primes

open access: yes, 2006
The Hardy-Littlewood method is a well-known technique in analytic number theory. Among its spectacular applications are Vinogradov's 1937 result that every sufficiently large odd number is a sum of three primes, and a related result of Chowla and Van der Corput giving an asymptotic for the number of 3-term progressions of primes, all less than N.
Green, Ben
openaire   +6 more sources

Rearrangement Free Method for Hardy-Littlewood-Sobolev Inequalities on $\mathbb{S}^n$

open access: yesAnalysis in Theory and Applications, 2022
Summary: For conformal Hardy-Littlewood-Sobolev (HLS) inequalities [\textit{E. H. Lieb}, Ann. Math. (2) 118, 349--374 (1983; Zbl 0527.42011)] and reversed conformal HLS inequalities [\textit{J. Dou} and \textit{M. Zhu}, Int. Math. Res. Not. 2015, No. 19, 9696--9726 (2015; Zbl 1329.26033)] on \(\mathbb{S}^n\), a new proof is given for the attainability ...
Zhang, Shutao, Han, Yazhou
openaire   +1 more source

Integral inequalities with an extended Poisson kernel and the existence of the extremals

open access: yesAdvanced Nonlinear Studies, 2023
In this article, we first apply the method of combining the interpolation theorem and weak-type estimate developed in Chen et al. to derive the Hardy-Littlewood-Sobolev inequality with an extended Poisson kernel.
Tao Chunxia, Wang Yike
doaj   +1 more source

Local Muckenhoupt class for variable exponents

open access: yesJournal of Inequalities and Applications, 2021
This work extends the theory of Rychkov, who developed the theory of A p loc $A_{p}^{\mathrm{loc}}$ weights. It also extends the work by Cruz-Uribe SFO, Fiorenza, and Neugebauer. The class A p ( ⋅ ) loc $A_{p(\cdot )}^{\mathrm{loc}}$ is defined.
Toru Nogayama, Yoshihiro Sawano
doaj   +1 more source

On the Waring-Goldbach problem for two squares and four cubes

open access: yesOpen Mathematics, 2023
Let NN be a sufficiently large integer. In this article, it is proved that, with at most O(N112+ε)O\left({N}^{\tfrac{1}{12}+\varepsilon }) exceptions, all even positive integers up to NN can be represented in the form p12+p22+p33+p43+p53+p63{p}_{1}^{2 ...
Zhang Min, Bai Hongxin, Li Jinjiang
doaj   +1 more source

On Waring's problem: some consequences of Golubeva's method [PDF]

open access: yes, 2012
We investigate sums of mixed powers involving two squares, two cubes, and various higher powers, concentrating on situations inaccessible to the Hardy-Littlewood ...
Wooley, Trevor D.
core   +2 more sources

Hamiltonian cycles in torical lattices [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2005
We establish sufficient conditions for a toric lattice $T_{m,n}$ to be Hamiltonian. Also, we give some asymptotics for the number of Hamiltonian cycles in $T_{m,n}$.
Vladimir K. Leontiev
doaj   +1 more source

Bihomogeneous forms in many variables [PDF]

open access: yes, 2013
We count integer points on bihomogeneous varieties using the Hardy-Littlewood method. The main novelty lies in using the structure of bihomogeneous equations to obtain asymptotics in generically fewer variables than would be necessary in using the ...
Schindler, Damaris
core   +2 more sources

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