
Reserch Papers Dedicated to 75th Anniversary of B.A. Shcherbakov 

Global attractors of nonautonomous disperse dynamical systems and differential inclusions. (English) Cheban D. N., Schmalfuss B.  pp.322 
Infinitesimal operators of rotation group and Lorentz group for differential equations and their applications. (English) Popa Mihail, Port S. A.  pp.2330 
Real quadratic systems with two imaginary invariant straight lines. (English) Voldman M., Vulpe Nicolae  pp.3136 
Solution of the problem of the center for cubic system with two homogeneous and one nonhomogeneous invariant straight lines. (English) Şubă Alexandru, Cozma D.  pp.3744 
On the reducibility of linear completely integrable systems with quasiperiodic coefficients. (English) Glavan V., Hincu V.  pp.4556 
Finslergeometrical approach to the studying of nonlinear dinamical systems. (English) Driuma Valeriu, Matsumoto M.  pp.5772 

Research Paper 

Approximation properties of a class of linear operators. (English) Agratini O.  pp.7378 
On the radius of stability of the Pareto optimum of the vector problem of Boolean programming. (Russian) Emelichev V. A., Krichko V. N.  pp.7984 
Mathematical modeling of water flow in channel systems. (Russian) Sviridov Yu. B., Naval I. K., Cheban V. G.  pp.8599 
Interpolation properties of entropy ideals. (English) Antonescu C.  pp.100105 
Two and threedimensional point groups of hypertablet Psymmetries and their geometrical application. (English) Palistrant A. F.  pp.106110 
The direct product of N quasiregular mappings. (English) Rusu E.  pp.111118 
Optimal paths in dynamic networks. (English) Boliac R., Leconiuc A., Lozovanu Dmitrii  pp.119124 
A criterion for entire function to be polynomial. (English) Dovbuş Piotr  pp.125127 

Significant Events 

Yurii Mikhailovich Ryabukhin. A tribute in honor of his 60th.
 pp.128129 
Boris Alexeevich Shcherbakov. A tribute in honor of his 75th.
 pp.130134 