Transfer-function matrixes

Compact formulas are given for elements of a transfer-function matrix, its inverse and other related quantities, in terms of the original differential equations. From these formulas, an upper bound to the degree of the quantities concerned is established.     

Connection between network theory and the theory of linear dynamical systems

A connection is established between network theory and the theory of linear dynamical systems which may provide a convenient way of formulating network problems for solution by digital computer and may also permit a new approach to some problems in network theory.     

Reduction of system matrixes

It is shown that, if a system matrix having real coefficients can be reduced, it can always be reduced to a system matrix having real coefficients.