Preconditioned Subspace Descent Method for Nonlinear Systems of Equations
نویسندگان
چکیده
منابع مشابه
Preconditioned Krylov Subspace Methods for Transport Equations
Transport equations have many important applications. Because the equations are based on highly non-normal operators, they present diiculties in numerical computations. The iterative methods have been shown to be one of eecient numerical methods to solve transport equations. However, because of the nature of transport problems, convergence of iterative methods tends to slow for many important p...
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Fayyaz Ahmad 1,2,3,*, Toseef Akhter Bhutta 4, Umar Sohaib 4, Malik Zaka Ullah 1,5, Ali Saleh Alshomrani 5, Shamshad Ahmad 6 and Shahid Ahmad 7 1 Dipartimento di Scienza e Alta Tecnologia, Universita dell’Insubria, Via Valleggio 11, Como 22100, Italy; [email protected] 2 Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Eduard Maristanu 10, Barcelona 0...
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One of the possible ways of solving general problems of constrained nonlinear optimization is to convert them into a sequence of unconstrained problems. Then the need arises to solve an unconstrained optimization problem reliably and efficiently. For this aim, Newton methods are usually applied, often in combination with sparse Cholesky decomposition. In practice, however, this approach may not...
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Article history: Received 6 July 2016 Received in revised form 2 December 2016 Accepted 23 December 2016 Available online 28 December 2016
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The purpose of this work is to compare the performance of some preconditioned iterative methods for solving the linear systems of equations, formed at each time-integration step of two-dimensional incompressible NavierStokes equations of fluid flow. The Navier-Stokes equations are discretized in an implicit and upwind control volume formulation. The iterative methods used in this paper include ...
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ژورنال
عنوان ژورنال: Open Computer Science
سال: 2020
ISSN: 2299-1093
DOI: 10.1515/comp-2020-0012