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检索条件"主题词=Block-pulse functions"
86 条 记 录,以下是41-50 订阅
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An expansion-iterative method for numerically solving Volterra integral equation of the first kind
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COMPUTERS & MATHEMATICS WITH APPLICATIONS 2010年 第4期59卷 1491-1499页
作者: Masouri, Z. Babolian, E. Hatamadeh-Varmazyar, S. IAU Dept Math Sci & Res Branch Tehran Iran IAU Dept Elect Engn Sci & Res Branch Tehran Iran
Most integral equations of the first kind are ill-posed, and obtaining their numerical solution often leads to solving a linear system of algebraic equations of a large condition number. So, solving this system is dif... 详细信息
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A composite collocation method for the nonlinear mixed Volterra-Fredholm-Hammerstein integral equations
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COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION 2011年 第3期16卷 1186-1194页
作者: Marzban, H. R. Tabrizidooz, H. R. Razzaghi, M. Mississippi State Univ Dept Math & Stat Mississippi State MS 39762 USA Isfahan Univ Technol Dept Math Esfahan Iran Univ Kashan Fac Sci Dept Math Kashan Iran Amirkabir Univ Technol Dept Appl Math Tehran Iran
This paper presents a computational technique for the solution of the nonlinear mixed Volterra-Fredholm-Hammerstein integral equations. The method is based on the composite collocation method. The properties of hybrid... 详细信息
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Numerical solution of delay systems containing inverse time by hybrid functions
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APPLIED MATHEMATICS AND COMPUTATION 2006年 第1期173卷 535-546页
作者: Wang, XT Harbin Inst Technol Dept Math Harbin 150001 Peoples R China
The hybrid functions consisting of general block-pulse functions and Legendre polynomials are presented to solve delay systems containing inverse time. The direct algorithm for a product of a matrix function and a vec... 详细信息
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Fractional-order hybrid functions combining simulated annealing algorithm for solving fractional pantograph differential equations
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JOURNAL OF COMPUTATIONAL SCIENCE 2023年 74卷
作者: Zhou, Fengying Xu, Xiaoyong Jiangxi Sci & Technol Normal Univ Sch Math & Comp Sci Nanchang 330036 Jiangxi Peoples R China East China Univ Technol Sch Sci Nanchang 330013 Jiangxi Peoples R China
A new and novel numerical method has been developed based on the fractional-order hybrid functions combining simulated annealing (SA) algorithm for the solutions of fractional pantograph delay differential equations. ... 详细信息
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Operational matrices based on hybrid functions for solving general nonlinear two-dimensional fractional integro-differential equations
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COMPUTATIONAL & APPLIED MATHEMATICS 2020年 第2期39卷 1-34页
作者: Maleknejad, Khosrow Rashidinia, Jalil Eftekhari, Tahereh Iran Univ Sci & Technol Sch Math Tehran *** Iran
In the present paper, an attempt was made to develop a numerical method for solving a general form of two-dimensional nonlinear fractional integro-differential equations using operational matrices. Our approach is bas... 详细信息
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A class of nonlinear optimal control problems governed by Fredholm integro-differential equations with delay
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INTERNATIONAL JOURNAL OF CONTROL 2020年 第9期93卷 2199-2211页
作者: Marzban, Hamid Reza Rostami Ashani, Mehrdad Isfahan Univ Technol Dept Math Sci Esfahan *** Iran
This paper introduces an efficient numerical scheme for solving a significant class of nonlinear delay optimal control problem governed by Fredholm integro-differential equations. A direct approach based on a combinat... 详细信息
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Optimal control of linear multi-delay systems based on a multi-interval decomposition scheme
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OPTIMAL CONTROL APPLICATIONS & METHODS 2016年 第1期37卷 190-211页
作者: Marzban, Hamid Reza Isfahan Univ Technol Dept Math Sci Esfahan Iran
This paper presents a novel approximation scheme to the numerical treatment of linear time-varying multi-delay systems with a quadratic performance index. A direct approach based on a hybrid of block-pulse functions a... 详细信息
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A hybrid approach to parameter identification of linear delay differential equations involving multiple delays
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INTERNATIONAL JOURNAL OF CONTROL 2018年 第5期91卷 1034-1052页
作者: Marzban, Hamid Reza Isfahan Univ Technol Dept Math Sci Esfahan Iran
In this paper, we are concerned with the parameter identification of linear time-invariant systems containing multiple delays. The approach is based upon a hybrid of block-pulse functions and Legendre's polynomial... 详细信息
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Optimal control of linear multi-delay systems with piecewise constant delays
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IMA JOURNAL OF MATHEMATICAL CONTROL AND INFORMATION 2018年 第1期35卷 183-212页
作者: Marzban, Hamid Reza Hoseini, Sayyed Mohammad Isfahan Univ Technol Dept Math Sci POB *** Esfahan Iran
This article is concerned with the numerical solution of optimal control of linear multi-delay systems involving piecewise constant time delays. The proposed approach is based on direct method using a hybrid of block-... 详细信息
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A composite Chebyshev finite difference method for nonlinear optimal control problems
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COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION 2013年 第6期18卷 1347-1361页
作者: Marzban, H. R. Hoseini, S. M. Isfahan Univ Technol Dept Math Sci Esfahan Iran
In this paper, a composite Chebyshev finite difference method is introduced and is successfully employed for solving nonlinear optimal control problems. The proposed method is an extension of the Chebyshev finite diff... 详细信息
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