Results 101 to 110 of about 623,284 (221)

New upper bound for lattice covering by spheres

Mathematika, 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, Xizhi Liu, Oleg Pikhurko, Shumin Sun   +3 more
wiley   +1 more source

Numerical Approximation for a Stochastic Fractional Differential Equation Driven by Integrated Multiplicative Noise

Mathematics
We consider a numerical approximation for stochastic fractional differential equations driven by integrated multiplicative noise. The fractional derivative is in the Caputo sense with the fractional order α∈(0,1), and the non-linear terms satisfy the ...
James Hoult, Yubin Yan
doaj   +1 more source

An Optimization Problem Related to Minkowski’s Successive Minima

Discrete & Computational Geometry, 2010
The purpose of this paper is to establish an inequality connecting the lattice point enumerator of a 0-symmetric convex body with its successive minima.
R. Malikiosis
semanticscholar   +1 more source

A maxiset approach of a Gaussian noise model [PDF]

, 2005
We consider the problem of estimating an unknown function $f$ in a homoscedastic Gaussian white noise setting under $\mathbb{L}^p$ risk. The particularity of this model is that it has an intermediate function, say $v$, which complicates the estimate ...
Chesneau, Christophe
core   +1 more source

Sharp Hardy's inequalities via conformable fractional integrals [PDF]

Surveys in Mathematics and its Applications
The aim of this research is to present Hardy-type inequalities with a sharp constant that are related to the fractional conformable integral operator.
Noureddine Azzouz, Bouharket Benaissa
doaj  

Spatial correlations in panel data [PDF]

In many empirical applications involving combined time-series and cross-sectional data, the residuals from different cross-sectional units are likely to be correlated with one another.
Driscoll, John, Kraay, Aart
core  

Minkowski Integral Inequality Revisited

, 2017
We generalize the classical Minkowski integral inequality to the form involving general Banach function norms.
openaire   +2 more sources

Diamond- Jensen's Inequality on Time Scales

Journal of Inequalities and Applications, 2008
The theory and applications of dynamic derivatives on time scales have recently received considerable attention. The primary purpose of this paper is to give basic properties of diamond- derivatives which are a linear combination of delta and nabla ...
Sidi Ammi MoulayRchid, Ferreira RuiAC, Torres DelfimFM   +2 more
doaj  

Block Matching Pyramid Algorithm-Based Analysis on Efficacy of Shexiang Baoxin Pills Guided by Echocardiogram (ECG) on Patients with Angina Pectoris in Coronary Heart Disease. [PDF]

J Healthc Eng, 2021
Gao J, Gao J, Wang X, Li L, Zhang H, He R, Han B, Li Z.   +7 more
europepmc   +1 more source

Positive degree and arithmetic bigness

, 2008
We establish, for a generically big Hermitian line bundle, the convergence of truncated Harder-Narasimhan polygons and the uniform continuity of the limit.
Chen, Huayi
core   +1 more source