Normwise condition numbers of the indefinite least squares problem with multiple right-hand sides

Normwise condition numbers of the indefinite least squares problem with multiple right-hand sides

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In this paper, we investigate the normwise condition numbers of the indefinite least squares problem with multiple right-hand sides with respect to the weighted Frobenius norm and 2-norm.The closed formulas or upper Shirts bounds for these condition numbers are presented, which extend the earlier work for the indefinite least squares problem with single right-hand side.Numerical experiments are performed to illustrate the tightness Right Pulse Grip Speed Control of the upper bounds.