Results 31 to 40 of about 58,029 (131)

Chebyshev Smoothing With Adaptive Block‐FSAI Preconditioners for the Multilevel Solution of Higher‐Order Problems With the Partition of Unity Method

Numerical Linear Algebra with Applications, Volume 33, Issue 3, June 2026.
ABSTRACT In this paper, we assess the performance of adaptive and nested factorized sparse approximate inverses as smoothers in multilevel V‐cycles, when smoothing is performed following the Chebyshev iteration of the fourth kind, for the efficient solution of linear systems arising from a conforming discretization of higher‐order partial differential ...
Pablo Jiménez Recio, Marc Alexander Schweitzer   +1 more
wiley   +1 more source

Flow Decomposition by Optimal Balance With Time‐Averaging

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 6, June 2026.
Abstract Decomposing oceanic and atmospheric flow fields into their slowly evolving balanced components and fast evolving wave components is essential to study processes like spontaneous or stimulated wave emission. However, a decomposition into the linear geostrophic (slow) and non‐geostrophic (fast) components is often not precise enough to address ...
Silvano Gordian Rosenau, Manita Chouksey, Carsten Eden   +2 more
wiley   +1 more source

Nonuniformly nonlinear elliptic equations of p-biharmonic type

, 2008
This paper deals with the existence and multiplicity of weak solutions to nonlinear differential equations involving a general p-biharmonic operator (in particular, p-biharmonic operator) under Dirichlet boundary conditions or Navier boundary conditions.
Weihua Wang, Peihao Zhao, Zhao, Peihao, Wang, Weihua   +3 more
core   +1 more source

Cold Pool Formation Over the Taiwan Bank Driven by Shoaling Internal Tides

Journal of Geophysical Research: Oceans, Volume 131, Issue 6, June 2026.
Abstract Cold, saline, and chlorophyll‐rich surface waters are frequently observed over the Taiwan Bank in the southern Taiwan Strait, forming a distinct feature referred to as the Green–Cold Pool (GCP). Despite its ecological importance, the physical mechanisms sustaining this cold pool remain unclear.
Ming‐Huei Chang, Yu‐Yu Yeh, Yu‐Hsin Cheng, Yiing Jang Yang, Dong Shan Ko, Shih‐Hong Wang   +5 more
wiley   +1 more source

Existence of Weak Solutions for Weighted Robin Problem Involving p(.)-biharmonic operator

, 2022
Using Mountain Pass Theorem, we consider the existence of weak solutions of weighted Robin problem involving p(.)-biharmonic operator { a(x)Delta(2)(p(x)) u = lambda b(x)vertical bar u vertical bar(q(x)-2)u, in Omega a(x)vertical bar Delta u vertical bar(
Kulak, Oznur, Aydin, Ismail, Unal, Cihan
core   +1 more source

Assessing Data‐Driven Eddy‐Parameterizations in an Atlantic Sector Model

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 6, June 2026.
Abstract Mesoscale eddies are the dominant reservoir of kinetic energy (KE) in the ocean and a key component of the Earth's climate system. Current state‐of‐the‐art climate models can only partially resolve mesoscale processes due to the limited spatial resolution imposed by computational resources, making the accurate parameterization of unresolved KE
David Kamm, Pavel Perezhogin, Julie Deshayes, Etienne Meunier, Alexis Barge   +4 more
wiley   +1 more source

Thermal Damage to the Skin From 5.6 GHz Microwave Exposures in Swine

Bioelectromagnetics, Volume 47, Issue 4, May 2026.
ABSTRACT A study of burn thresholds from superficially penetrating radio‐frequency (RF) energy at 5.6 GHz for swine skin was conducted. The study estimated the thresholds for superficial, partial‐thickness, and full‐thickness burn severities after 20 s of exposure at power densities of 4–8 W/cm2. Biopsies were collected from each burn site at 1, 24, 72,
James E. Parker, Roberto A. Rodriguez, Clarissa D. Vázquez‐Colón, Randolph Stone, Joseph W. Butterworth, Jeffrey N. Whitmore, Jason A. Payne, William B. Voorhees   +7 more
wiley   +1 more source

DJ4Earth: Differentiable, and Performance‐Portable Earth System Modeling via Program Transformations

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 5, May 2026.
Abstract Differentiable Earth system models (ESMs) enable powerful applications such as sensitivity analysis, gradient‐based calibration, state estimation, boundary flux inversions, uncertainty quantification, and online machine learning. Reverse‐mode automatic differentiation (AD) efficiently provides gradients for such tasks, yet models have rarely ...
William S. Moses, Gong Cheng, Valentin Churavy, Maximilian Gelbrecht, Milan Klöwer, Joseph Kump, Mathieu Morlighem, Sarah Williamson, Dhruv Apte, Paul Berg, Mosè Giordano, Christopher Hill, Nora Loose, Alexis Montoison, Sri Hari Krishna Narayanan, Avik Pal, Michel Schanen, Simone Silvestri, Greg Wagner, Patrick Heimbach   +19 more
wiley   +1 more source

p⁢(x)p(x)-biharmonic operator involving the p⁢(x)p(x)-Hardy inequality

, 2018
In this work, we investigate the spectrum denoted by Λ for the p ⁢
Abdelfattah Touzani, Abdelouahed El Khalil, Moulay Driss Morchid Alaoui, Mostafa El Moumni   +3 more
core   +1 more source

Existence and asymptotic behavior of beam-equation solutions with strong damping and p(x)-biharmonic operator

, 2022
In this paper, we consider a nonlinear beam equation with a strong damping and the p(x)-biharmonic operator. The exponent p(·) of nonlinearity is a given function satisfying some condition to be specified. Applying Faedo– Galerkin’s method, the existence
Messaoudi, Salim A., Ferreira, Jorge, Panni, Willian S., Shahrouzi, Mohammad, Pişkin, Erhan   +4 more
core   +1 more source