Primal-Dual Bilinear Programming Solution of the Absolute Value Equation
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We propose a finitely terminating primal-dual bilinear programming algorithm for the solution of the NP-hard absolute value equation (AVE): Ax ? |x| = b, where A is an n � n square matrix. The algorithm, which makes no assumptions on AVE other than solvability, consists of a finite number of linear programs terminating at a solution of the AVE or at a stationary point of the bilinear program. The proposed algorithm was tested on 500 consecutively generated random instances of the AVE with n =10, 50, 100, 500 and 1,000. The algorithm solved 88.6% of the test problems to an accuracy of 1e ? 6 .
absolute value equations