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A nonlinear mathematical modeling of daily pan evaporation based on conjugate gradient method
Computers and Electronics in Agriculture, 2016B. Keshtegar, J. Piri, Ö. Kisi
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A modified conjugate gradient method for monotone nonlinear equations with convex constraints
Applied Numerical Mathematics, 2019In this paper, a modified Hestenes-Stiefel (HS) spectral conjugate gradient (CG) method for monotone nonlinear equations with convex constraints is proposed based on projection technique.
Aliyu Muhammed Awwal +2 more
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Conjugate gradient method with pseudospectral collocation scheme for optimal rocket landing guidance
, 2020This paper aims at proposing a pseudospectral collocation conjugate gradient method (PCCG) for solving the nonlinear optimal control problems with terminal constraints and to apply it to rocket landing guidance.
Yang Li, W. Chen, Hao Zhou, Liang Yang
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Block-conjugate-gradient method
Physical Review D, 1989It is shown that by using the block-conjugate-gradient method several, say {ital s}, columns of the inverse Kogut-Susskind fermion matrix can be found simultaneously, in less time than it would take to run the standard conjugate-gradient algorithm {ital s} times. The method improves in efficiency relative to the standard conjugate-gradient algorithm as
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2006
The endeavour to solve systems of linear algebraic systems is already two thousand years old. In the paper we consider the conjugate gradient method that is (theoretically) finite but, in practice, it can be treated as an iterative method. We survey a known modification of the method, the preconditioned conjugate gradient method, that may converge ...
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The endeavour to solve systems of linear algebraic systems is already two thousand years old. In the paper we consider the conjugate gradient method that is (theoretically) finite but, in practice, it can be treated as an iterative method. We survey a known modification of the method, the preconditioned conjugate gradient method, that may converge ...
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2019
Our interest in the conjugate gradient methods is twofold. First, they are among the most useful techniques to solve a large system of linear equations. Second, they can be adopted to solve large nonlinear optimization problems. In the previous chapters, we studied two important methods for finding a minimum point of real-valued functions of n real ...
Shashi Kant Mishra, Bhagwat Ram
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Our interest in the conjugate gradient methods is twofold. First, they are among the most useful techniques to solve a large system of linear equations. Second, they can be adopted to solve large nonlinear optimization problems. In the previous chapters, we studied two important methods for finding a minimum point of real-valued functions of n real ...
Shashi Kant Mishra, Bhagwat Ram
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Applied Numerical Mathematics, 2019
In this paper, a new hybrid conjugate gradient method for solving unconstrained optimization problems is proposed. The proposed method inherits the features of the PRP, FR and NPRP conjugate gradient methods.
P. Mtagulwa, P. Kaelo
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In this paper, a new hybrid conjugate gradient method for solving unconstrained optimization problems is proposed. The proposed method inherits the features of the PRP, FR and NPRP conjugate gradient methods.
P. Mtagulwa, P. Kaelo
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Applied Mathematics and Computation, 2019
In this paper, we present a modification of Polak–Ribi e ´ re–Polyak (PRP) conjugate gradient method for solving system of monotone nonlinear equations which is a combination of spectral conjugate gradient method and the hyperplane projection technique ...
Aliyu Muhammed Awwal +2 more
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In this paper, we present a modification of Polak–Ribi e ´ re–Polyak (PRP) conjugate gradient method for solving system of monotone nonlinear equations which is a combination of spectral conjugate gradient method and the hyperplane projection technique ...
Aliyu Muhammed Awwal +2 more
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Moving force identification based on modified preconditioned conjugate gradient method
Journal of Sound and Vibration, 2018This paper develops a modified preconditioned conjugate gradient (M-PCG) method for moving force identification (MFI) by improving the conjugate gradient (CG) and preconditioned conjugate gradient (PCG) methods with a modified Gram-Schmidt algorithm. The
Zhen Chen, T. Chan, A. Nguyen
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Complex conjugate gradient methods
Numerical Algorithms, 1993The paper is concerned with the solution of linear systems with non- singular complex matrices. A unified framework is presented from which various conjugate gradient-like methods for solving the above described systems are derived. The considered methods include both well-known methods and some new variants of these methods.
Joly, Pascal, Meurant, Gérard
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