Results 111 to 120 of about 5,570,115 (211)

Nonlocal problems for hyperbolic equations from the viewpoint of strongly regular boundary conditions

Electronic Journal of Differential Equations, 2020
In this article, we consider a nonlocal problem for hyperbolic equation with integral conditions and show their close connection with the notion of strongly regular boundary conditions.
Ludmila S. Pulkina
doaj  

On the Limits of a Space‐Time Description and the Physical Meaning of Phase Space in a Nonlocal Continuum

Annalen der Physik, Volume 538, Issue 10, October 2026.
Nonlocal quantum field theory predicts a finite phase‐space resolution, so even highly squeezed quantum states cannot be localized beyond a fundamental nonlocal limit, providing a potential experimental signature of nonlocality. ABSTRACT In a previous paper we derived an uncertainty relation for nonlocal fields by showing that the physical localization
E. J. Thompson
wiley   +1 more source

Polarization‐Dependence of Nonlinear Optical Effects in Silicon: The Case of Ultrafast Processing

Advanced Physics Research, Volume 5, Issue 10, October 2026.
The dependence of the input polarization for the nonlinear optical propagation in silicon is investigated theoretically and experimentally. The perturbative regime is examined using pump‐probe shadowgraphy and nonlinear transmission, whereas the case of permanent laser‐induced modifications is addressed using a combination of Raman micro‐spectroscopy ...
Namig Alasgarzade, Alessandro Alberucci, Stree V. Arumugam, Markus Blothe, Maxime Chambonneau, Chandroth P. Jisha, Stefan Nolte   +6 more
wiley   +1 more source

Existence of positive solutions for non local p-Laplacian thermistor problems on time scales [PDF]

, 2007
We make use of the Guo-Krasnoselskii fixed point theorem on cones to prove existence of positive solutions to a non local p-Laplacian boundary value problem on time scales arising in many applications. © 2007 Victoria University.
Ammi, M.R.S., Torres, D.F.M.
core  

A Test Function Method for Weakly Coupled Systems With Derivative‐Type Nonlinearity

Mathematische Nachrichten, Volume 299, Issue 10, Page 3015-3035, October 2026.
ABSTRACT We consider a two by two system of inequalities which include fractional powers of the Laplace operator, coupled through a semilinear term of derivative type. We prove the nonexistence of global‐in‐time weak solutions for powers below the critical curve and possibly on the critical curve.
Marcello D'Abbicco, Antonio Lagioia
wiley   +1 more source

Analysis of Eigenvalue Clustering Leads to Optimal Scaling in Numerical Radiative Transfer

Numerical Linear Algebra with Applications, Volume 33, Issue 5, October 2026.
ABSTRACT We consider a multidimensional polychromatic radiative transfer (RT) problem, accounting for scattering processes in a general form, that is, anisotropic (dipole) scattering with partial frequency redistribution. Given a discrete ordinates (SN$$ {S}_N $$) discretization, we report the corresponding matrix structures, depending on the model and
Pietro Benedusi, Simone Riva, Luca Belluzzi, Stefano Serra‐Capizzano   +3 more
wiley   +1 more source

University Students' Utility Value of Learning About a Local or Nonlocal Environmental Socioscientific Issue: Written Reflections and Instructional Contexts

Journal of Research in Science Teaching, Volume 63, Issue 8, Page 800-820, October 2026.
ABSTRACT Socioscientific issues (SSIs) are central to science education, yet empirical research on learners' perceived relevance in SSI teaching and learning remains limited. Utility value is a relevance construct that refers to the perceived usefulness of learning for learners' lives.
F. K. Matthiesen, F. Rehling, G. Nolte, I. G. Arjana, L. Sundawati, S. Bögeholz   +5 more
wiley   +1 more source

On abstract nonlocal Cauchy problem [PDF]

, 2015
In this paper, we investigate the existence and uniqueness of the classical solution to an abstract nonlocal Cauchy problem.
Byszewski, Ludwik, Bednarz, Adam
core  

A Semi‐Resolved LES‐DEM Framework for Turbulent Bedload Transport From Saltation to Sheet‐Flow Regimes

Water Resources Research, Volume 62, Issue 10, October 2026.
Abstract Bedload transport widely occurs in natural environments and encompasses flow regimes from saltation to sheet‐flow, with markedly different fluid‐particle interaction characteristics. Understanding these mechanisms requires a numerical tool capable of capturing both the turbulence and fluid‐particle interactions, for which challenges exist due ...
Yuxiang Liu, Lu Jing, Zi Wu, Xudong Fu
wiley   +1 more source

Existence of solutions for an n-dimensional operator equation and applications to BVPs

Electronic Journal of Differential Equations, 2014
By applying the Guo-Lakshmikantham fixed point theorem on high dimensional cones, sufficient conditions are given to guarantee the existence of positive solutions of a system of equations of the form $$ x_i(t)=\sum_{k=1}^n\sum_{j=1}^n\gamma_{ij}(t ...
George L. Karakostas
doaj