Determination of Regimes of the Equivalent Generator Based On Projective Geometry: The Generalized Equivalent Generator
Requirements that should be met when determining the regimes of circuits with variable elements are formulated. The interpretation of the variations in the regimes, based on projective geometry, enables adequate expressions for determining and comparing the regimes to be derived. It is proposed to use as the parameters of a generalized equivalent generator of an active two-pole with changeable resistor such load current and voltage which provide the current through this resistor equal to zero.
 G. E. Chatzarakis, P. G. Cottis, M. D. Tortoreli, P. B. Malatestas, N. J.
Kolliopoulos and S. N. Livieratoss, "Powerful pedagogical approaches
for finding Thevenin and Norton equivalent circuits for linear electric
circuits", Intl. J. Elect.Enging. Educ., 42/4 (Oct.2005), pp. 350-368.
 C. A. Desoer and E. S. Kuh, Basic Circuit Theory. McGraw - Hill, New
 A. A. Penin , "Linear- fractional relation in the problems of analysis of
resistive circuits with variable parameters", Electrichestvo, 11, 1999, pp.
32- 44, (russian).
 A. A. Penin, "Characteristics modified equivalent generator of active
two- terminal network with variable resistor", Electrichestvo, 4, 1995,
pp. 55- 59, (russian).
 A. A. Penin, "Projective equivalency of operating conditions for twoports",
Electrichestvo, 8, 1993, pp. 47- 54, (russian).
 G. A. Korn and T. M. Korn, Mathematical Handbook. McGraw - Hill,
New York, 1968.
 O. Veblen and J. W. A. Young, Projective Geometry, vol.1. Blaisdell,
New York, 1938- 1946.
 V. A. Venikov, Similarity and Simulation Theory. Higher School,
Moscow, 1976, (russian).