Results 61 to 70 of about 8,923 (240)

Self‐Similar Blowup for the Cubic Schrödinger Equation

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
ABSTRACT We give a rigorous proof for the existence of a finite‐energy, self‐similar solution to the focusing cubic Schrödinger equation in three spatial dimensions. The proof is computer‐assisted and relies on a fixed point argument that shows the existence of a solution in the vicinity of a numerically constructed approximation.
Roland Donninger, Birgit Schörkhuber
wiley   +1 more source

Symmetries, Reductions and Exact Solutions of Nonstationary Monge–Ampère Type Equations

open access: yesMathematics
A family of strongly nonlinear nonstationary equations of mathematical physics with three independent variables is investigated, which contain an arbitrary degree of the first derivative with respect to time and a quadratic combination of second ...
Alexander V. Aksenov, Andrei D. Polyanin
doaj   +1 more source

Variational Estimates using a Discrete Variable Representation

open access: yes, 2004
The advantage of using a Discrete Variable Representation (DVR) is that the Hamiltonian of two interacting particles can be constructed in a very simple form.
A. Kievsky   +4 more
core   +1 more source

Governance Drivers of Fossil Fuel Divestment: Evidence From Global Banks

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Climate change poses increasing transition risks for the banking sector, as financial institutions remain exposed to fossil fuel activities despite growing sustainability commitments. This study examines whether corporate governance influences banks' decisions to adopt fossil fuel divestment policies.
Rosella Carè   +3 more
wiley   +1 more source

Detection of high-power two-mode squeezing by sum-frequency generation

open access: yes, 2012
We introduce sum-frequency generation (SFG) as an effective physical two-photon detector for high power two-mode squeezed coherent states with arbitrary frequency separation, as produced by parametric oscillators well above the threshold.
Avi Pe'er   +4 more
core   +1 more source

Approximate Quadrature Measures on Data-Defined Spaces [PDF]

open access: yes, 2018
30 pages; Accepted for publication in "Festschrift for the 80th Birthday of Ian Sloan" (Josef Dick, Frances Y Kuo, Henryk Wozniakowski, Editors), Springer ...
openaire   +2 more sources

Coupling Fluid Neutrals to Gyrokinetic Plasma Dynamics for Edge and SOL Turbulence Simulations

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT Accurate modeling of turbulent transport in magnetic confinement fusion devices requires extending first‐principles gyrokinetic simulations from the core to the edge and scrape‐off layer (SOL), where additional physics—particularly plasma–neutrals interactions—must be included.
Sabine Ogier‐Collin   +3 more
wiley   +1 more source

Nacisk Stempla na Niejednorodna Półpłaszczyznę Sprężystą

open access: yesEngineering Transactions, 1967
An effective solution is obtained for the contact problem of a symmetric body of any form in contact without friction with a nonhomogeneous elastic semi-infinite panel (Fig, 1).
B. Stachowicz, G. Szefer
doaj  

Gaussian Quadratures vs. Monte Carlo Experiments for Systematic Sensitivity Analysis of Computable General Equilibrium Model Results [PDF]

open access: yes, 2017
Citation: Villoria, N. B., & Preckel, P. V. (2017). Gaussian Quadratures vs. Monte Carlo Experiments for Systematic Sensitivity Analysis of Computable General Equilibrium Model Results. Economics Bulletin, 37(1), 480-+.
Preckel, Paul V., Villoria, Nelson B.
core  

Digital Rights Activism in Multilevel Governance

open access: yesEuropean Policy Analysis, EarlyView.
ABSTRACT Multilevel governance (MLG) without a clear hierarchical structure can create power imbalances among various actors, particularly in settings with overlapping jurisdictions and policy areas. This dynamic is especially pronounced in Internet governance, which faces a complex interplay of domestic laws, state interdependence, and heightened ...
Alison Harcourt
wiley   +1 more source

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