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## BASM n.3 (9), 1992

 Research Paper On the number, multiplicity and types of singular points of a differential system. (Russian) Babaeva R. A., Burlak E. M., Vulpe Nicolae pp.3-8 Stochastic Volterra integral equations. (Russian) Rodkina A. E. pp.9-15 Quasistatistic thermic oscillations of a freely supported rectangular orthotropic plate. (Russian) Mikhalevskij V. Ts. pp.16-22 Structually stable singular points of fields of linear elements in the plane. (Russian) Bronshtein I. U., Nikolaev I. V. pp.23-29 Groups of regular permutations and nuclei of linear and close to linear quasigroups. (Russian) Tabarov A. Kh. pp.30-36 About self-orthogonal $n$-groups. (English) Dudek W. A., Syrbu P. N. pp.37-42 Conditions for the topological distinguishability of complete quadratic systems with a center for $K_1\equiv 0$. (Russian) Calin Iurie pp.43-45 On the algebra of singular integral operators with an inverse shift in the space $L_p(\bbfR,\rho)$. (Russian) Nyaga V. I., Laila Muksen pp.46-55 On a parametrical method for solving bicriterion max-min fractional problems. (English) Stancu-Minasian I. M., Tigan S., Lozovanu Dmitrii, Solomon D. I. pp.56-61 Center conditions of a cubic system with four integral lines. (Russian) Kozima D. V., Shube A. S. pp.62-67 On the simplicity of symmetrically normed ideals. (Russian) Russu G. I. pp.68-71 On the theory $W$-symmetry groups. (Russian) Lungu A. P. pp.72-81 Some mappings of lattices of submodules in Morita contexts. (Russian) Caşu Alexei pp.82-87 Investigation of the process of stratification of the piped liquid mixture. (Russian) Goncharenko N. V., Moiseenko S. G. pp.88-92