Results 61 to 70 of about 104,269 (299)
Optimal control problem for 3D micropolar fluid equations
Electronic Journal of Qualitative Theory of Differential Equations, 2020 In this paper we study an optimal control problem related to strong solutions of 3D micropolar fluid equations. We deduce the existence of a global optimal solution with distributed control and, using a Lagrange multipliers theorem, we derive first-order
Exequiel Mallea-Zepeda, Luis Medina
doaj +1 more source
Influence of Dynamical Friction on the Unstable Manifolds of Lagrange Points in Barred Galaxies
Astronomische Nachrichten, EarlyView.ABSTRACT Some time ago the idea has been proposed that rings and spirals in barred galaxies are shaped by the unstable manifolds of the Lagrange points sitting near the ends of the bar. The topic of the present article is an investigation of whether the numerical support for this suggestion can be improved by the inclusion of dynamical friction into ...
Christof Jung
wiley +1 more source
Lagrange multipliers in infinite dimensional spaces, examples of application
, 2019 The Lagrange multipliers method is used in Mathematical Analysis, in Mechanics, in Economics and in several other fields, to deal with the search of the global maximum or minimum of a function, in presence of a constraint.
Bersani, A. +5 more
core +2 more sources
IEEE AccessThe rise of renewable energy sources has transformed the energy distribution system. In addition to the well-established roles of energy producers and consumers, microgenerators have emerged, which can act as both energy consumers and producers.
Lasse Nitz +5 more
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Business Strategy and the Environment, EarlyView.ABSTRACT This study examines corporate environmental reporting practices among listed companies in the European Union during the period 2018–2022, within the context of the Non‐Financial Reporting Directive (NFRD). To this end, an Environmental Disclosure Index (EDI) is constructed based on qualitative reporting items, and panel‐data models are ...
Rosalva Pinto‐Braga +2 more
wiley +1 more source
Udwadia-Kalaba Approach for Three Link Manipulator Dynamics With Motion Constraints
IEEE Access, 2019 Aiming to dynamic modeling of a three-link manipulator subjected to motion constraints, a novel explicit approach to the dynamical equations based on Udwadia-Kalaba (UK) theory is established.
Xiaolong Zhang +4 more
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Business Strategy and the Environment, EarlyView.ABSTRACT Despite the critical role that state‐owned enterprises (SOEs) can play in the green transition, relatively little is known about governments' environmental behavior as foreign shareholders. This study examines the effect of state ownership on domestic and foreign environmental performance.
Pablo Torres, Germà Bel, Marc Esteve
wiley +1 more source
The variational iteration method for solving linear and nonlinear Schrodinger equations [PDF]
Iranian Journal of Numerical Analysis and Optimization, 2009 In this paper, the variational iteration method proposed by Ji-Huan He is applied to solve both linear and nonlinear Schrodinger equations. The main property of the method is in its flexibility and ability to solve linear and nonlinear equations ...
B. Jazbi, M. Moini
doaj +1 more source
Coupling methods for non-matching meshes through distributed Lagrange multipliers [PDF]
, 2019 Nature and engineering commonly present multi-physics problems, i.e., complex systems involving a number of mutually interacting subsystems that can be modelled by (non linearly coupled) Partial Differential Equations (PDEs).
Alzetta, Giovanni
core
Business Strategy and the Environment, EarlyView.ABSTRACT Focusing on firm‐size heterogeneity, this study examines how institutional reform reshapes the effects of environmental, social, and governance (ESG) disclosure on firm value. Using 2019–2023 panel data on 1427 Japanese listed firms (before and after the 2022 Tokyo Stock Exchange reorganization and Corporate Governance Code revision), this ...
Akio Nakashima, Kimitaka Nishitani
wiley +1 more source