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Discriminants and OneSigned Quadratic Forms
POWERS OF MATRICES SERIES
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A-matrix accordingly adjoint matrices aeroplane algebraic ankylosis application appropriate approximate arbitrary constants array assumed Cayley-Hamilton theorem chosen coefficients computation constituent convenient corresponding critical speed degeneracy degrees of freedom denotes derived adjoint determinant diagonal matrix differential equations displacement distinct disturbance dominant root equal roots equivalent example expressed factor first-order system follows forces formula friction function generalised coordinates gives Hence identity initial instance iterative method latent roots linear linearly independent matrix of order modal column modal matrix modulus motion multiplication non-singular non-singular matrix non-zero null obtained operations polynomial positive postmultiplied premultiplication principal diagonal quadratic form reciprocal reduced relation represented roots of A(A satisfied scalar Similarly simple root simply degenerate singular singular matrix solution square matrix steady oscillations submatrices substitution Suppose Sylvester's theorem symmetrical symmetrical matrix triangular matrix typical unit matrix values vanish variables velocities yields zero