Structured doubling algorithms for solving g-palindromic quadratic eigenvalue problems∗

نویسندگان

  • Eric King-wah Chu
  • Tsung-Ming Huang
  • Wen-Wei Lin
چکیده

The T-palindromic quadratic eigenvalue problem (λB + λC + A)x = 0, with A,B,C ∈ Cn×n, C = C and B = A, governs the vibration behavior of trains. One way to solve the problem is to apply a structure-preserving doubling algorithm (SDA) to the nonlinear matrix equation (NME) X + BX−1A = C and “square-root” the matrix quadratic involved. In this paper, we generalize the SDA for the solution of (odd and even) Tand H-palindromic quadratic eigenvalue problems in a unified fashion. A convergence proof and several numerical examples are provided.

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تاریخ انتشار 2008