Results 21 to 30 of about 13,071 (304)
Reconstructing a Helical Magnetic Field in the Solar Corona using Lagrange Multiplier Technique [PDF]
Iranian Journal of Astronomy and Astrophysics, 2023 We aim to reconstruct a nonlinear force-free magnetic field by minimizing the global departure of an initial field from a force-free and solenoidal state in the presence of helicity to obtain an appropriate representation of the magnetic field compatible
Nasim IldarTanha, Sadollah Nasiri
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Controllability, not chaos, key criterion for ocean state estimation [PDF]
Nonlinear Processes in Geophysics, 2017 The Lagrange multiplier method for combining observations and models (i.e., the adjoint method or 4D-VAR) has been avoided or approximated when the numerical model is highly nonlinear or chaotic.
G. Gebbie +3 more
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Supergravity with mimetic dark matter
European Physical Journal C: Particles and Fields, 2021 We formulate a supersymmetric version of gravity with mimetic dark matter. The coupling of a constrained chiral multiplet to $$N = 1$$ N = 1 supergravity is made locally supersymmetric using the rules of tensor calculus.
Ali H. Chamseddine
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The Influence of the Basic Parameters of the Numerical Model on the Contact Pressure in Dynamic Tasks [PDF]
Transactions of the VŠB-Technical University of Ostrava, Mechanical Series, 2013 The paper is devoted to quasi-static and low-velocity impact simulation using finite element modelling. The paper describes the effects of contact models, contact parameters, integration method, and the velocity of impact on contact stresses values ...
Irina SEMENOVA, Petr HORYL
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A new multiplier for Lagrange interpolation in constrained non linear optimization [PDF]
المجلة العراقية للعلوم الاحصائية, 2010 In this paper, we have investigated a new multiplier for the Lagrange interpolation by modifying the initial value of the multiplier in order to reduce the errors and avoid the use of arbitrary values for the initial .
ABBAS Y. AL-BAYIATI +2 more
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Comparison of Lagrange multipliers for telegraph equations
Ain Shams Engineering Journal, 2018 In this paper, we likewise calculate exact langrage multiplier and it progressively connects to the definite results of telegraph equations. This study witnesses the advantages of Exact Lagrange multipliers and their coupling with Variational Iteration ...
Muhammad Hamid +3 more
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Energies, 2022 In medium-term scheduling, the end-of-term storage energy maximization model is proposed to create conditions for the safety, stability and economic operation of the hydropower system after control term, which satisfies the system load demand undertaken ...
Xinyu Wu, Ruixiang Cheng, Chuntian Cheng
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Journal of Asian Architecture and Building Engineering, 2023 shaped steel sections subjected to biaxial loads. The Lagrange multiplier method is used to optimize cost index (CIc), and CO2 emission of the columns.
Won-Kee Hong +3 more
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A semi-smoothing augmented Lagrange multiplier algorithm for low-rank Toeplitz matrix completion
Journal of Inequalities and Applications, 2019 The smoothing augmented Lagrange multiplier (SALM) algorithm is a generalization of the augmented Lagrange multiplier algorithm for completing a Toeplitz matrix, which saves computational cost of the singular value decomposition (SVD) and approximates ...
Ruiping Wen, Shuzhen Li, Yonghong Duan
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Singular limit of Allen-Cahn equation with constraints and its Lagrange multiplier [PDF]
, 2014 We consider the Allen-Cahn equation with constraint. Our constraint is the subdifferential of the indicator function on the closed interval, which is the multivalued function.
Yamazaki, Noriaki +5 more
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