Results 31 to 40 of about 2,154 (104)

Finite-Time Robust Stability of Uncertain Genetic Regulatory Networks with Time-Varying Delays and Reaction-Diffusion Terms

Complexity, 2019
This study seeks to address the finite-time robust stability of delayed genetic regulatory networks (GRNs) with uncertain parameters and reaction-diffusion terms.
Wenqin Wang, Yali Dong, Shouming Zhong, Feng Liu   +3 more
doaj   +1 more source

Asymptotic Analysis of Stokes Flow Through a Filter

Mathematical Methods in the Applied Sciences, Volume 48, Issue 13, Page 12913-12934, September 2025.
ABSTRACT This paper investigates the Stokes flow through a thin porous layer composed of a rigid, thin, periodic, and closely packed array of parallel long rods with a noncircular, anisotropic cross‐section in the shape of a slot. This shape allows for the construction of a thicker permeable filter than what is known as the Brinkman critical size.
Georges Griso, Larysa Khilkova, Julia Orlik   +2 more
wiley   +1 more source

Homogeneous Multigrid for Hybrid Discretizations: Application to HHO Methods

Numerical Methods for Partial Differential Equations, Volume 41, Issue 5, September 2025.
ABSTRACT We prove the uniform convergence of the geometric multigrid V‐cycle for hybrid high‐order (HHO) and other discontinuous skeletal methods. Our results generalize previously established results for HDG methods, and our multigrid method uses standard smoothers and local solvers that are bounded, convergent, and consistent.
Daniele A. Di Pietro, Zhaonan Dong, Guido Kanschat, Pierre Matalon, Andreas Rupp   +4 more
wiley   +1 more source

Hilfer fractional derivatives and their role in Wirtinger-type inequalities with applications

Journal of Inequalities and Applications
In this paper, we explore novel Wirtinger-type inequalities for the Hilfer fractional derivatives. By formulating suitable integral identities and employing Hölder’s inequality, we propose a class of generalized Hilfer fractional Wirtinger-type ...
Samraiz Muhammad, Yussouf Areej, Naheed Saima, Etemad Sina, Tariboon Jessada   +4 more
doaj   +1 more source

Unconditional and Conditional Large Gaps between the zeros of the Riemann Zeta-Function [PDF]

, 2010
In this paper, first by employing inequalities derived from the Opial inequality due to David Boyd with best constant, we will establish new unconditional lower bounds for the gaps between the zeros of the Riemann zeta function. Second, on the hypothesis
Saker, S. H.
core  

On the existence of traveling waves in the 3D Boussinesq system

, 2008
We extend earlier work on traveling waves in premixed flames in a gravitationally stratified medium, subject to the Boussinesq approximation. For three-dimensional channels not aligned with the gravity direction and under the Dirichlet boundary ...
D. Gilbarg, H. Berestycki, H. Sohr, J. Xin, J.-G. Liu, J.M. Roquejoffre, M. Lewicka, M.R. Ukhovskij, Marta Lewicka, N. Vladimirova, N. Vladimirova, P. Constantin, P. Constantin, P.B. Mucha, P.B. Mucha, Piotr B. Mucha, R. Texier-Picard, S. Agmon, W. Xie, Ya.B. Zeldovich   +19 more
core   +1 more source

On the Influence of the Fiber Curvature on the Stiffness of Long Fiber Reinforced Composites

International Journal for Numerical Methods in Engineering, Volume 126, Issue 15, 15 August 2025.
ABSTRACT The degree of curvature of fiber inclusions in fiber‐reinforced composites impacts the elastic properties of the composite, but numerical studies of this effect are limited by the lack of efficient microstructure generators with fiber curvature control. We propose an extension to the fused Sequential Addition and Migration algorithm (Int.
Celine Lauff, Maximilian Krause, Matti Schneider, Thomas Böhlke   +3 more
wiley   +1 more source

Wirtinger-type estimates via hilfer fractional derivatives and their role in economics

Mathematical and Computer Modelling of Dynamical Systems
This study offers novel [Formula: see text]-Hilfer version of Wirtinger-type estimates in the context of [Formula: see text] spaces for [Formula: see text] by using Hölder’s inequality.
Saima Naheed, Areej Yussouf, Muhammad Samraiz, Sina Etemad, Jessada Tariboon   +4 more
doaj   +1 more source

Nonlocal‐to‐local convergence for a Cahn–Hilliard tumor growth model

GAMM-Mitteilungen, Volume 48, Issue 2, June 2025.
Abstract We consider a local Cahn–Hilliard‐type model for tumor growth as well as a nonlocal model where, compared to the local system, the Laplacian in the equation for the chemical potential is replaced by a nonlocal operator. The latter is defined as a convolution integral with suitable kernels parametrized by a small parameter.
Christoph Hurm, Maximilian Moser
wiley   +1 more source

On Generalized Wirtinger Inequalities for (k,ψ)-Caputo Fractional Derivatives and Applications

Fractal and Fractional
The primary aim of this study is to establish new Wirtinger-type inequalities involving fractional derivatives, which are essential tools in analysis and applied mathematics.
Muhammad Samraiz, Humaira Javaid, Ishtiaq Ali   +2 more
doaj   +1 more source