Results 111 to 120 of about 516,450 (251)

Ghost effect from Boltzmann theory

Communications on Pure and Applied Mathematics, Volume 79, Issue 3, Page 558-675, March 2026.
Abstract Taking place naturally in a gas subject to a given wall temperature distribution, the “ghost effect” exhibits a rare kinetic effect beyond the prediction of classical fluid theory and Fourier law in such a classical problem in physics. As the Knudsen number ε$\varepsilon$ goes to zero, the finite variation of temperature in the bulk is ...
Raffaele Esposito, Yan Guo, Rossana Marra, Lei Wu   +3 more
wiley   +1 more source

Capacity Optimization and Hierarchical Robust Control Verification of Wind–Solar–Diesel Hybrid Microgrid Based on Improved Multi‐Objective Grey Wolf Algorithm

Engineering Reports, Volume 8, Issue 3, March 2026.
To address high‐altitude power transmission challenges, a composite controller was developed to suppress strong wind interference, demonstrating the effectiveness of hierarchical control in complex dynamic systems. Hardware‐in‐the‐loop experiments verified the robustness of the control algorithm, providing methodological support for developing ...
Shaofeng Bai, Jun Zhong
wiley   +1 more source

Massive Spanning Forests on the Complete Graph: Exact Distribution and Local Limit

Random Structures &Algorithms, Volume 68, Issue 2, March 2026.
ABSTRACT We provide new exact formulas for the distribution of massive spanning forests on the complete graph, which give also a new outlook on the celebrated special case of the uniform spanning tree. As a corollary we identify their local limit. This generalizes a well‐known theorem of Grimmett on the local limit of uniform spanning trees on the ...
Matteo D'Achille, Nathanaël Enriquez, Paul Melotti   +2 more
wiley   +1 more source

On the kernel of the Stieltjes derivative and the space of bounded Stieltjes-differentiable functions

Electronic Journal of Qualitative Theory of Differential Equations
We investigate the existence and uniqueness of solutions to first-order Stieltjes differential problems, focusing on the role of the Stieltjes derivative and its kernel.
Francisco Fernández, Ignacio Márquez Albés, F. Adrián Tojo, Carlos Villanueva Mariz   +3 more
doaj   +1 more source

A Generalization Error Bound of Physics‐Informed Neural Networks for Ecological Diffusion Models

Stat, Volume 15, Issue 1, March 2026.
ABSTRACT Ecological diffusion equations (EDEs) are partial differential equations (PDEs) that model spatiotemporal dynamics, often applied to wildlife diseases. Derived from ecological mechanisms, EDEs are useful for forecasting, inference, and decision‐making, such as guiding surveillance strategies for wildlife diseases.
Juan Francisco Mandujano Reyes, Ting Fung Ma, Ian McGahan, Daniel Walsh, Jun Zhu   +4 more
wiley   +1 more source

Model‐Free Local Partial Correlation

Australian &New Zealand Journal of Statistics, Volume 68, Issue 1, March 2026.
ABSTRACT In the simple linear regression context, partial correlation measures the linear association between two variables, with the linear effects of a third control variable removed. In this paper, we investigate the local partial correlation using a kernel smoothing approach.
Li‐Shan Huang, Chuo‐Ju Yang, Jin‐Ting Zhang   +2 more
wiley   +1 more source

Well-Posedness of Problems for the Heat Equation with a Fractional-Loaded Term and Memory

Dynamics
We investigate the Cauchy problem for a heat equation incorporating variable diffusion coefficients and fractional memory effects modeled by a separable convolution kernel.
Umida Baltaeva, Bobur Khasanov, Omongul Egamberganova, Hamrobek Hayitbayev   +3 more
doaj   +1 more source

Estimation of Daily Smoking Prevalence for Disaggregated Statistical Areas in Australia

Australian &New Zealand Journal of Statistics, Volume 68, Issue 1, March 2026.
ABSTRACT Motivated by the need to estimate prevalence at multiple disaggregated level hierarchies, rather than only one, this study extends widely used area‐level models in Bayesian and frequentist framework. We propose adding additional unstructured random effects at higher level disaggregated domains to the traditional models. Using our extension, we
Sumonkanti Das, Bernard Baffour, Alice Richardson, Susanna M. Cramb, Stephen John Haslett   +4 more
wiley   +1 more source

Cauchy Kernel Center Differential Filtering Based on Pseudo-Inverse Mechanism for Nonlinear Non-Gaussian Systems

IEEE Access
This paper addresses the non-Gaussian filtering problem for nonlinear systems. An iterative updating center differential filter is designed under Cauchy kernel maximum correntropy, on the basis of the pseudo inverse mechanism.
Shaowu Wang, Yongjing Wang
doaj   +1 more source

On Singular Integrals with Cauchy Kernel on Weight Subspaces: The Basicity Property of Sines and Cosines Systems in Weight Spaces

International Journal of Mathematics and Mathematical Sciences, 2011
A singular operator with Cauchy kernel on the subspaces of weight Lebesgue space is considered. A sufficient condition for a bounded action of this operator from a subspace to another subspace of weight Lebesgue space of functions is found.
Tofig Isa Najafov, Saeed Farahani
doaj   +1 more source