
Significant Events 

Konstantin Sergeevich Sibirsky (1928  1990). A tribute in honor of his 70th birthday. B. A. Shcherbakov, I. U. Bronshteyn  pp.34 

Research Paper 

Hilbert's series for comitants graded algebras of differential equations. (English) Braicov A. V., Macari P. M., Popa Mihail, Port S. A.  pp.514 
Smooth linearization near a threedimensional saddle. (English) Bronshteyn I., Kopanskii A.  pp.1520 
Recurrent functions and recurrent solutions of differential equations. (Russian) Shcherbakov B. A.  pp.2131 
Lyapunov functions for cocycle attractors in nonautonomous difference equations. (English) Kloeden P. E.  pp.3242 
Attractors for stochastic differential equations with nontrivial noise. (English) Keller H., Schmalfuss B.  pp.4354 
On the law of transformation of affine connection and its integration. Part 1. Generalization of the Lame equations. (English) Driuma Valeriu  pp.5568 
Types of the critical points for quadratic system with a center of symmetry. (English) Lupan M. N.  pp.6980 
The differential operators and multiplicity of singular points for polynomial differential system. (English) Baltag Valeriu, Vulpe Nicolae  pp.8194 
Poisson stability of mappings with respect to a semigroup. (English) Gerko A. I.  pp.95102 
On partial recurrent solutions of completely integrable systems. (English) Glavan V. A., Hincu V. I.  pp.103112 
Coefficient conditions for the repartition of multiplicity between 2 real double infinite singular points of cubic differential system. (English) Gheorghiu L. E.  pp.113124 
$L_p$theory of generalized solutions of model boundary value problems for parabolic equations. (English) Rudi I., Zhitarashu N.  pp.125144 
Local phase portraits of twodimensional analytical systems principal parts of which do not contain parameters. (English) Detchenya L. V., Sadovskii A. P.  pp.145149 