نتایج جستجو برای: iterative globallocal method

تعداد نتایج: 1663913  

Journal: :bulletin of the iranian mathematical society 2013
j. cai

in this paper, an iterative method is proposed for solving the matrix inverse problem $ax=b$ for hermitian-generalized hamiltonian matrices with a submatrix constraint. by this iterative method, for any initial matrix $a_0$, a solution $a^*$ can be obtained in finite iteration steps in the absence of roundoff errors, and the solution with least norm can be obtained by choosing a special kind of...

Journal: :ISRN Mathematical Analysis 2014

Journal: :International Journal of Differential Equations 2011

2002
Stefaan Vandenberghe Yves D'Asseler Rik Van de Walle Ignace Lemahieu

In PET imaging listmode is an alternative for projections to store the acquisition data with more accuracy. The reconstruction starting from the listmode format requires different approaches than projection based algorithms. The ML-EM algorithm was modified to start from the listmode format. For listmode data mage degrading effects can be classified into two groups. Internal LOR effects (like a...

Journal: :Journal of Computational and Applied Mathematics 1986

Journal: :Procedia Computer Science 2013

Journal: :Journal of Computational and Applied Mathematics 1996

Journal: :Journal of Computational and Applied Mathematics 2001

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