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math.NA2024
Exploiting the the nonzero diagonal pattern in matrix function computations
Majed Hamadi, Nezam Mahdavi-Amiri, Marcel Schweitzer
We consider the task of approximating a matrix function , where is a matrix in which only a relatively small number of (not necessarily consecutive) sub- and superdiagona…
math.NA2014
Computing Symmetric Positive Definite Solutions of Three Types of Nonlinear Matrix Equations
Negin Bagherpour, Nezam Mahdavi-Amiri
Nonlinear matrix equations arise in many practical contexts related to control theory, dynamical programming and finite element methods for solving some partial differential equati…
math.NA2014★ 1 cited
A New Error in Variables Model for Solving Positive Definite Linear System Using Orthogonal Matrix Decompositions
Negin Bagherpour, Nezam Mahdavi Amiri
The need to estimate a positive definite solution to an overdetermined linear system of equations with multiple right hand side vectors arises in several process control contexts.…