Results 101 to 110 of about 673 (226)

Nonlinear Response‐History Analyses of Masonry and Mixed Structures With HybriDFEM

open access: yesEarthquake Engineering &Structural Dynamics, Volume 55, Issue 8, Page 1694-1709, 10 July 2026.
ABSTRACT The hybrid discrete‐finite element (HybriDFEM) method, previously developed to perform static and modal analysis in discrete and coupled discrete‐finite element models, is extended to nonlinear response‐history analyses. The equations of motion for the HybriDFEM model are solved through various numerical time‐integration schemes, both explicit
Igor Bouckaert   +2 more
wiley   +1 more source

A First Survey of Gabor Multipliers

open access: yes, 2002
We describe various basic facts about Gabor multipliers and their continuous analogue which we will call STFT-multipliers. These operators are obtained by going from the signal domain to some transform domain, and applying a pointwise multiplication ...
Krzysztof Nowak, Hans G. Feichtinger
core  

Three‐Dimensional Analytical Model of a Free‐Standing Square Rocking Column

open access: yesEarthquake Engineering &Structural Dynamics, Volume 55, Issue 8, Page 1710-1727, 10 July 2026.
ABSTRACT A three‐dimensional analytical two‐degree‐of‐freedom (2DOF) model is developed to describe the bounded rocking response of free‐standing rigid square columns subjected to bidirectional seismic excitation. The formulation extends Housner's classical planar theory by deriving the full three‐dimensional equations of motion for a column ...
Dimitra Adamopoulou   +1 more
wiley   +1 more source

A Deep Learning Framework for Forecasting Medium‐Term Covariance in Multiasset Portfolios

open access: yesJournal of Forecasting, Volume 45, Issue 4, Page 1797-1828, July 2026.
ABSTRACT Forecasting the covariance matrix of asset returns is central to portfolio construction, risk management, and asset pricing. However, most existing models struggle at medium‐term horizons, several weeks to months, where shifting market regimes and slower dynamics prevail.
Pedro Reis, Ana Paula Serra, João Gama
wiley   +1 more source

Multipliers and cyclic vectors in Bloch type spaces

open access: yes, 2015
In this paper we study the coefficient multipliers, pointwise multipliers and cyclic vectors in the Bloch type spaces Bα and little Bloch type spaces B0α for 0 < α < ∞.
Lou, Z, Guo, Ji Dong, Song, Dao Jin
core  

Pointwise convergence of noncommutative Fourier series

open access: yes, 2023
This paper is devoted to the study of pointwise convergence of Fourier series for group von Neumann algebras and quantum groups. It is well-known that a number of approximation properties of groups can be interpreted as summation methods and mean ...
Wang, Xumin   +2 more
core  

Electricity Price Prediction Using Multikernel Gaussian Process Regression Combined With Kernel‐Based Support Vector Regression

open access: yesJournal of Forecasting, Volume 45, Issue 4, Page 2059-2077, July 2026.
ABSTRACT This paper presents a new hybrid model for predicting German electricity prices. The algorithm is based on a combination of Gaussian process regression (GPR) and support vector regression (SVR). Although GPR is a competent model for learning stochastic patterns within data and for interpolation, its performance for out‐of‐sample data is not ...
Abhinav Das   +2 more
wiley   +1 more source

Automating creativity assessment in engineering design: A psychometric validation of AI‐generated items of the design problem task

open access: yesJournal of Engineering Education, Volume 115, Issue 3, July 2026.
Abstract Background Creativity is essential for engineering design, yet its assessment remains challenging due to the resource‐intensive nature of traditional evaluation methods. Purpose/Hypothesis(es) This study investigates the potential of automatic item generation (AIG) using large language models (LLMs) to create psychometrically sound items for ...
Simone A. Luchini   +4 more
wiley   +1 more source

On the Choice of Optimization Norm for Anderson Acceleration of the Picard Iteration for Navier–Stokes Equations

open access: yesNumerical Methods for Partial Differential Equations, Volume 42, Issue 4, July 2026.
ABSTRACT While recent Anderson acceleration (AA) convergence theory [Pollock et al., IMA Num. An., 2021] requires that the AA optimization norm match the Hilbert space norm associated with the fixed point operator, in implementations the ℓ2$$ {\ell}^2 $$ norm is the most common choice. So far there is little research done regarding this discrepancy. To
Elizabeth Hawkins, Leo G. Rebholz
wiley   +1 more source

Causal Effects on Nonterminal Event Time With Application to Antibiotic Usage and Future Resistance

open access: yesStatistics in Medicine, Volume 45, Issue 15-17, July 2026.
ABSTRACT Comparing future antibiotic resistance levels resulting from different antibiotic treatments is challenging because some patients may survive only under one of the antibiotic treatments. We embed this problem within a semi‐competing risks approach to study the causal effect on resistant infection, treated as a nonterminal event time.
Tamir Zehavi   +3 more
wiley   +1 more source

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