Efficient Computation of the Matrix Exponential by Generalized Polar Decompositions


Abstract. In this paper we explore the computation of the matrix exponential in a manner that is consistent with Lie-group structure. Our point of departure is the method of generalized polar decompositions, which we modify and combine with similarity transformations that bring the underlying matrix to a form more amenable to efficient computation. We… (More)
DOI: 10.1137/S0036142902415936


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