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About the generalized LM-inverse and the weighted Moore-Penrose inverse

By Milan B. Tasiíc, Predrag S. Stanimirović and Selver H. Pepí


The recursive method for computing the generalized LM-inverse of a constant rectangular matrix augmented by a column vector is proposed in Udwadia and Phohomsiri (2007) [16] and [17]. The corresponding algorithm for the sequential determination of the generalized LM-inverse is established in the present paper. We prove that the introduced algorithm for computing the generalized LM-inverse and the algorithm for the computation of the weighted Moore-Penrose inverse developed by Wang and Chen (1986) in [23] are equivalent algorithms. Both of the algorithms are implemented in the present paper using the package MATHEMATICA. Several rational test matrices and randomly generated constant matrices are tested and the CPU time is compared and discussed

Topics: Computer Science - Symbolic Computation, Computer Science - Data Structures and Algorithms, Computer Science - Mathematical Software, Computer Science - Numerical Analysis, Mathematics - Functional Analysis, 15A09, 68W30
Year: 2011
DOI identifier: 10.1016/j.amc.2010.01.019
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