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The Normal System of Simultaneous Differential Equations

1974
We found in the L-transformation a superior tool for the solution of the initial value problem involving a single differential equation of n th order, when compared with the classical method. This was due to the fact that with the latter one has to adapt the derived solution to the specified initial values, while with the former this is accomplished ...
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Reexamining the Estimation of Simultaneous Equations Systems [PDF]

open access: possible, 1999
This paper generalises a classical theorem on the minimisation of the ratio of two quadratic forms so as to permit the denominator to be nonnegative definite, provides a modified formula for the minimum variance ratio estimation including the limited information maximum likelihood, and collaterally shows that the use of the principal components of some
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A Note on Single Equation Estimators in Simultaneous Equation Systems

Revue de l'Institut International de Statistique / Review of the International Statistical Institute, 1970
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