O.D. Akhmatova and G.A. Bendrikov

Equations are found for the root trajectories and for the parameter for systems having distributed delay, whose characteristice quation (where к is the free parameter). The general properties of the root trajectories are analyzed, and an example is discussed.

B. Esser

Two theoretical problems involving heavily built semiconductors are analyzed.

G.V. Smimitskaya

It is shown that in a strong magnetic field, in which the density of the negative; space charge in a cylindrical gas magnetron reaches its maximum value, the equation for the discharge current is a particular case of the equation for the discharge current in a Penning discharge, reported previously by Reikhrudel et al. The value of (Hra)n , at which we find р=р_max for a given Va, is determined. The theoretical values are found to be in satisfactory agreement with the experimental values for various geometric and physical parameters.

V.V. Lyalin and N.A. Sukhacheva

Linear two - dimensional systems having nonidentical channels and crossed linkages are analyzed by the root - trajectory method. Some examples of nonidentical systems are discussed.

V.B. Braginskii, V.A. Kuznetsov, and V.N. Rudenko

An experimental study has been made of light - induced stiffness and radiometric oscillatory instability.

A.A. Sokolov and M.M. Kolesnikova

The classical Dirac equation for a point electron is used to analyze the Born paradox, according to which the radiative - friction power seems to not be equal to the energy radiated per unit time in certain cases.

V.I. Trukhin

The natural magnetic states of rock have been studied and compared with a zero initial state. Rocks are usually in nonequilibrium states. The deviation from equilibrium depends on the temperature at which the natural remnant magnetization was formed and on the time which has elapsed since the rock formation.

V.I. Nedel'ko and V.I. Chechernikov

R.M. Umarkhodzhaev and A.L. Kotkin

L.P. Shlyakhina