Results 101 to 110 of about 1,252,466 (233)

Properness and Topological Degree for Nonlocal Reaction-Diffusion Operators [PDF]

open access: yes, 2011
The paper is devoted to integro-differential operators, which correspond to nonlocal reaction-diffusion equations considered on the whole axis. Their Fredholm property and properness will be proved.
Volpert, Vitaly   +3 more
core   +1 more source

The Evolution of Interest‐Rate Models: From the Yield Curve to the Swaption Cube

open access: yesJournal of Economic Surveys, EarlyView.
ABSTRACT Interest‐rate modelling is often taught as a catalogue of competing stochastic equations, obscuring why models were created and why modern sell‐side desks use several simultaneously. This survey reorganises the field around five layers of a pricing architecture: curve construction; arbitrage‐free dynamics; volatility‐smile representation ...
Xuan Feng   +2 more
wiley   +1 more source

The diffusion equation with nonlocal data

open access: yesJournal of Mathematical Analysis and Applications, 2018
21 pages, 3 ...
P.D. Miller, D.A. Smith
openaire   +4 more sources

A Stable Formulation for Wave‐Induced Fracture in Peridynamics

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT The bond‐associated quadrature point formulation is a very accurate peridynamic formulation for elasticity, but modeling fracture by the traditional deletion of bonds can trigger severe numerical instabilities. These instabilities are most pronounced for wave‐induced fracture, where stress waves continue to propagate through already damaged ...
Kai Partmann   +3 more
wiley   +1 more source

On nonlocal diffusion of gases

open access: yes, 1978
Od Vol. 43, issue 1 (1991) wyd.: Polish Scientific Publishers = PWN ; Od Vol. 50, issue 4 (1998) wyd.: Agencja Reklamowo-Wydawnicza A. Grzegorczyk ; Od Vol. 53, issue 4/5 (2001) wyd: PAS. IFTR ; 1-120 pages [I-VIII Authors' Index] ; 24 cm ; Od Vol. 43, issue 1 (1991) wyd.: Polish Scientific Publishers = PWN ; Od Vol.
Demiray, H., Eringen, A.C.
openaire   +1 more source

A note on a nonlocal nonlinear reaction–diffusion model

open access: yesApplied Mathematics Letters, 2012
We give an application of the Crandall-Rabinowitz theorem on local bifurcation to a system of nonlinear parabolic equations with nonlocal reaction and cross-diffusion terms as well as nonlocal initial conditions. The system arises as steady-state equations of two interacting age-structured populations.
openaire   +4 more sources

Four Decades of Research at the MADE Site and Beyond: Advancing the Understanding and Modeling of Solute Transport in Heterogeneous Media

open access: yesReviews of Geophysics, Volume 64, Issue 4, December 2026.
Abstract Spatial heterogeneity, manifested as strong variability in hydraulic conductivity (K) within geological formations, exerts a fundamental control on groundwater flow and solute transport. Because K can vary over multiple orders of magnitude in complex three‐dimensional patterns, predicting contaminant plume migration remains a long‐standing ...
Zhilin Guo   +8 more
wiley   +1 more source

Mathematical Analysis for Nonlocal Nonlinear Diffusion Models

open access: yes, 2022
Nonlinear nonlocal diffusion models arise at the intersection of nonlinear diffusion -- when the diffusivity coefficient is state dependent -- and nonlocal models -- when the operators governing the equations are chosen to have integral, rather than ...
Olson, Hayley Anne
core  

Modulating Covalent Organic Framework Nanochannel Microenvironments for Sustainable Hydrogen Peroxide Photosynthesis

open access: yesAngewandte Chemie, Volume 138, Issue 44, 26 October 2026.
Alkoxy side chains regulate hydrazone‐linked COF nanochannel microenvironments by tuning pore polarity, reactant adsorption, and charge‐separation behavior. The optimized framework facilitates oxygen activation and hydrogen peroxide photosynthesis in real water and a 1 L natural‐sunlight reactor. LCA further shows that natural sunlight and larger‐scale
Ruixue Sun   +11 more
wiley   +2 more sources

Data‐Driven Discovery of Classical and Anomalous Transport Models From Sparse Breakthrough Curves in Heterogeneous Porous Media via Symbolic Regression

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 6, December 2026.
Abstract Natural porous media are highly heterogeneous, with flow and transport controlled by pore‐space morphology and connectivity. Consequently, classical continuum models often fail to describe observed transport under strong heterogeneity. A key challenge is identifying physically interpretable transport models from sparse observational data.
Jinwoo Im   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy