Results 241 to 250 of about 1,750 (289)

Optimal and typical L 2 discrepancy of 2-dimensional lattices. [PDF]

Ann Mat Pura Appl
Borda B.
europepmc   +1 more source

Performance Investigation of Four Ionospheric Models in Estimating hmF2 in High‐Latitude Regions

Space Weather, Volume 24, Issue 7, July 2026.
Abstract As a critical parameter characterizing the vertical structure of the ionosphere, the peak height of the F2 layer (hmF2) plays an essential role in frequency selection and signal propagation in high‐frequency (HF) communication systems. Accurate prediction of hmF2 is particularly important in high‐latitude regions.
T. Y. Li, Q. Yu, Y. F. Shi, C. Yang, J. Q. Fan, J. Wang   +5 more
wiley   +1 more source

Metabolic and Structural Alterations in the Motor System Following Spinal Cord Injury: An In-Vivo ¹H-MR Spectroscopy Investigation. [PDF]

J Neurosci Res
Schading-Sassenhausen S, Lebret A, Şimşek K, Gut P, Imhof S, Zörner B, Kreis R, Freund P, Seif M.   +8 more
europepmc   +1 more source

Distributional and Tail‐Dependent Perspectives in Economic Relationships: A Review of Quantile Regression Application

Journal of Economic Surveys, Volume 40, Issue 3, Page 1637-1652, July 2026.
ABSTRACT There is an increased proportion of studies using quantile‐based regression methodology (QR) in economics. They offer a robust alternative to classical mean regressions, which can estimate non‐normal variables with distributional heterogeneity in the dependent variable.
Shajara Ul‐Durar, Konstantinos A. Dimitriadis, Noman Arshed, Marco De Sisto, Hamidreza Harati   +4 more
wiley   +1 more source

A Review: Construction of Statistical Distributions. [PDF]

Entropy (Basel)
Fang KT, Lin YX, Deng YH.
europepmc   +1 more source

Robust Bernoulli Mixture Models for Credit Portfolio Risk

Mathematical Finance, Volume 36, Issue 3, Page 528-543, July 2026.
ABSTRACT This paper presents comparison results and establishes risk bounds for credit portfolios within classes of Bernoulli mixture models, assuming conditionally independent defaults that are stochastically increasing in a common risk factor. We provide simple and interpretable conditions on conditional default probabilities that imply a comparison ...
Jonathan Ansari, Eva Lütkebohmert
wiley   +1 more source

On the Gauss-Hecke sums

Journal of the Mathematical Society of Japan, 1964
openaire   +3 more sources

Roots of polynomial sequences in root‐sparse regions

Bulletin of the London Mathematical Society, Volume 58, Issue 7, July 2026.
Abstract Given a family (qk)k$(q_k)_k$ of polynomials, we call an open set U$U$root‐sparse if the number of zeros of qk$q_k$ is locally uniformly bounded on U$U$. We study the interplay between the individual zeros of the polynomials qk$q_k$ and those of the m$m$th derivatives qk(m)$q_k^{(m)}$ in a root‐sparse open set U$U$, as k→∞$k\rightarrow \infty$.
Christian Henriksen, Carsten Lunde Petersen, Eva Uhre   +2 more
wiley   +1 more source

Coarse-Grained Simulations of Thermosensitive Polymer Nanocomposites. [PDF]

Macromolecules
Ramos-Tejada MDM, Martín-Molina A, Montesinos D, Pérez-Mas L, Quesada-Pérez M.   +4 more
europepmc   +1 more source

Upscaling the Strength Domain of Heterogeneous Cohesive‐Frictional Materials via a General FFT‐Based Limit Analysis Approach

International Journal for Numerical Methods in Engineering, Volume 127, Issue 12, 30 June 2026.
ABSTRACT Limit analysis and yield design provide a well‐defined mathematical framework for upscaling the strength properties of heterogeneous materials. These techniques can be incorporated into an FFT‐based computational micromechanics framework to evaluate the strength of heterogeneous materials, based on images of their microstructure.
Elodie Donval, Matti Schneider
wiley   +1 more source