Results 81 to 90 of about 33,078 (239)

New upper bound for lattice covering by spheres

open access: yesMathematika, Volume 72, Issue 1, January 2026.
Abstract We show that there exists a lattice covering of Rn$\mathbb {R}^n$ by Euclidean spheres of equal radius with density O(nlnβn)$O\big (n \ln ^{\beta } n \big)$ as n→∞$n\rightarrow \infty$, where β≔12log28πe33=1.85837….$$\begin{align*} \beta \coloneqq \frac{1}{2} \log _2 {\left(\frac{8 \pi \mathrm{e}}{3\sqrt 3}\right)}=1.85837\,\ldots . \end{align*
Jun Gao   +3 more
wiley   +1 more source

Inequalities for dual affine quermassintegrals

open access: yesJournal of Inequalities and Applications, 2006
For star bodies, the dual affine quermassintegrals were introduced and studied in several papers. The aim of this paper is to study them further. In this paper, some inequalities for dual affine quermassintegrals are established, such as the Minkowski ...
Jun Yuan, Gangsong Leng
doaj  

Generalizations of the Brunn–Minkowski inequality

open access: yesLinear Algebra and its Applications, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Bi‐Level Multi‐Criteria Optimization to Include Linear Energy Transfer Into Proton Treatment Planning

open access: yesJournal of Multi-Criteria Decision Analysis, Volume 32, Issue 3, December 2025.
ABSTRACT In proton therapy treatment planning, the aim is to ensure tumour control while sparing the various surrounding risk structures. The biological effect of the irradiation depends on both physical dose and linear energy transfer (LET). In order to include LET alongside physical dose in plan creation, we propose to formulate the proton treatment ...
Mara Schubert, Katrin Teichert
wiley   +1 more source

A full classification of the isometries of the class of ball‐bodies

open access: yesBulletin of the London Mathematical Society, Volume 57, Issue 12, Page 3691-3698, December 2025.
Abstract Complementing our previous results, we give a classification of all isometries (not necessarily surjective) of the metric space consisting of ball‐bodies, endowed with the Hausdorff metric. ‘Ball‐bodies’ are convex bodies which are intersections of translates of the Euclidean unit ball.
Shiri Artstein‐Avidan   +2 more
wiley   +1 more source

Inequalities of Hardy Type via Superquadratic Functions with General Kernels and Measures for Several Variables on Time Scales

open access: yesJournal of Function Spaces, 2020
We use the properties of superquadratic functions to produce various improvements and popularizations on time scales of the Hardy form inequalities and their converses.
H. M. Rezk   +4 more
doaj   +1 more source

A fractal local smoothing problem for the wave equation

open access: yesBulletin of the London Mathematical Society, Volume 57, Issue 12, Page 3667-3690, December 2025.
Abstract For any given set E⊂[1,2]$E\subset [1,2]$, we discuss a fractal frequency‐localized version of the Lp$L^p$ local smoothing estimates for the half‐wave propagator with times in E$E$. A conjecture is formulated in terms of a quantity involving the Assouad spectrum of E$E$ and the Legendre transform.
David Beltran   +3 more
wiley   +1 more source

A converse of Minkowski's inequality

open access: yesDiscrete Mathematics, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Alzer, Horst, Ruscheweyh, Stephan
openaire   +2 more sources

On the deep‐water and shallow‐water limits of the intermediate long wave equation from a statistical viewpoint

open access: yesTransactions of the London Mathematical Society, Volume 12, Issue 1, December 2025.
Abstract We study convergence problems for the intermediate long wave (ILW) equation, with the depth parameter δ>0$\delta > 0$, in the deep‐water limit (δ→∞$\delta \rightarrow \infty$) and the shallow‐water limit (δ→0$\delta \rightarrow 0$) from a statistical point of view.
Guopeng Li, Tadahiro Oh, Guangqu Zheng
wiley   +1 more source

A note on the proofs of generalized Radon inequality [PDF]

open access: yesMathematica Moravica, 2018
In this paper, we introduce and prove several generalizations of the Radon inequality. The proofs in the current paper unify and also are simpler than those in early published work.
Yongtao Li, Xian-Ming Gu, Xiao Jianci
doaj  

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