Results 121 to 130 of about 375,658 (336)

Left Wanting and Left Unheard: A Dual Grievance Model of Populism Across Six European Countries

open access: yesEuropean Journal of Social Psychology, EarlyView.
ABSTRACT This study tests a dual grievance model of populism by examining whether relative deprivation and external political inefficacy are linked to two core dimensions of populist beliefs (people sovereignty and anti‐elitism) via aversive political emotions (anger, sadness and fear) and institutional distrust across six European countries (N = 5487).
Anna Cortijos‐Bernabeu   +2 more
wiley   +1 more source

Operación económica de dispositivos almacenadores de energía para disminución de pérdidas

open access: yesTecnura, 2014
This paper presents an algorithm for the optimal operation of distributed energy storage units from perspective of active potential lost. An exact model based on Lagrange relaxation is proposed.
Alejandro Garcés Ruiz   +2 more
doaj   +1 more source

An Efficient Quasi‐Static Condensation‐Based Framework for Seismic Analysis of Multi‐Supported Secondary Structures

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Multi‐supported non‐structural components (NSCs) are prone to seismic damage, yet their response prediction remains challenging when support motions are spatially incoherent. This study proposes an enhanced quasi‐static condensation (EQSC) method for linear, lightweight, dynamically detuned multi‐supported NSCs under the neglect of primary ...
Duozhi Wang   +5 more
wiley   +1 more source

Further properties of Lagrange multipliers in nonsmooth optimization

open access: yes, 1980
We compute the Clarke generalized gradient of the marginal function of a nonconvex optimization problem with respect to usual and non usual parameters and we show how Lagrange multipliers are involved in this ...
Aubin, Jean-Pierre
core   +1 more source

A remark on infinite-dimensional variational inequalities

open access: yesLe Matematiche, 1994
An infinite-dimensional Quasi-Variational Inequality is considered, whose domain in expressed as intersection of the level sets of functionals having infinite-dimensional image. A proposal is made to handle it by means of Lagrange multipliers.
Franco Giannessi
doaj  

New Generalised Semi‐Analytical Approach for the Multidimensional Nonlinear Collisional Fragmentation Equations

open access: yesInternational Journal for Numerical Methods in Fluids, EarlyView.
This work aims to develop a generalised and efficient semi‐analytical method that combines the Laplace decomposition method with Pade approximation (LDMPA) to solve multidimensional nonlinear integro‐partial differential equation. For a one‐dimension case, explicit (closed‐form) solutions for the number density functions are derived for the first time.
Somveer Keshav   +4 more
wiley   +1 more source

Multicontinuum Homogenization for Poroelasticity Model

open access: yesInternational Journal for Numerical Methods in Fluids, EarlyView.
This work derives a generalized multicontinuum poroelasticity model using the multicontinuum homogenization method to enable accurate coarse‐grid simulations of coupled flow–mechanics processes in highly heterogeneous porous media. Coupled constraint cell problems are formulated, and the corresponding multicontinuum equations are rigorously derived ...
Dmitry Ammosov   +2 more
wiley   +1 more source

Intraday Functional PCA Forecasting of Cryptocurrency Returns

open access: yesJournal of Forecasting, EarlyView.
ABSTRACT We study the functional PCA (FPCA) forecasting method in application to functions of intraday returns on Bitcoin. We show that improved interval forecasts of future return functions are obtained when the conditional heteroscedasticity of return functions is taken into account.
Joann Jasiak, Cheng Zhong
wiley   +1 more source

Zero or near-to-zero Lagrange multipliers in linearly constrained nonlinear programming

open access: yes, 1982
We discuss in this work the using of Lagrange multipliers estimates in linearly constrained nonlinear programming algorithms and the implication of zero or near-to-zero Lagrange multipliers. Some methods for estimating the tendency of the multipliers are
Escudero, L. F.
core   +1 more source

MODERNIZATION OF MEANS FOR ANALYSES AND SOLUTION OF NONLINEAR PROGRAMMING PROBLEMS

open access: yesQuantitative Methods in Economics, 2015
The problems of optimization for nonlinear programming (NLP) with constraints inequalities are considered. Definition of condition-indicator as quantitative criterion of the properties of Lagrange function is justified.
Alexandr Trunov
doaj  

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