Browsing by Author "Qian, Jiang"

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STRUCTURE-PRESERVING ALGORITHMS FOR PALINDROMIC QUADRATIC EIGENVALUE PROBLEMS ARISING FROM VIBRATION OF FAST TRAINS
(2008)
Huang, Tsung-Ming
;
Lin, Wen-Wei
;
Qian, Jiang
;
應用數學系
;
Department of Applied Mathematics
In this paper, based on Patel's algorithm (1993), we propose a structure-preserving algorithm for solving palindromic quadratic eigenvalue problems (QEPs). We also show the relationship between the structure-preserving algorithm and the URV-based structure-preserving algorithm by Schroder (2007). For large sparse palindromic QEPs, we develop a generalized T-skew-Hamiltonian implicitly restarted shift-and-invert Arnoldi algorithm for solving the resulting T-skew-Hamiltonian pencils. Numerical experiments show that our proposed structure-preserving algorithms perform well on the palindromic QEP arising from a finite element model of high-speed trains and rails.