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Polynomial Characteristic Equations: Criteria for Quadratic Factors to be Positive

J. Morris (Formerly S.P.S.O., R.A.E., Furnborough)
J.W. Head (Research Department, B.B.C. Engineering Division)

Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Article publication date: 1 December 1955

Abstract

IN the investigation of stability problems in physical science it is essential that ‘stability criteria’ be available to ensure that the characteristic equation, which is usually an algebraic polynomial equation, is such that the roots, if real, are negative; and, if complex, have their real parts negative.

Citation

Morris, J. and Head, J.W. (1955), "Polynomial Characteristic Equations: Criteria for Quadratic Factors to be Positive", Aircraft Engineering and Aerospace Technology, Vol. 27 No. 12, pp. 419-420. https://doi.org/10.1108/eb032640

Publisher

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MCB UP Ltd

Copyright © 1955, MCB UP Limited