|
In mathematics, the quadratic eigenvalue problem〔F. Tisseur and K. Meerbergen, The quadratic eigenvalue problem, SIAM Rev., 43 (2001), pp. 235–286.〕 (QEP), is to find scalar eigenvalues , left eigenvectors and right eigenvectors such that : where , with matrix coefficients and we require that , (so that we have a nonzero leading coefficient). There are eigenvalues that may be ''infinite'' or finite, and possibly zero. This is a special case of a nonlinear eigenproblem. is also known as a quadratic matrix polynomial. ==Applications== A QEP can result in part of the dynamic analysis of structures discretized by the finite element method. In this case the quadratic, has the form , where is the mass matrix, is the damping matrix and is the stiffness matrix. Other applications include vibro-acoustics and fluid dynamics. 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Quadratic eigenvalue problem」の詳細全文を読む スポンサード リンク
|