On the composition of operators in vector spaces and their Noether property
Under the minimal assumptions imposed on given spaces, the sufficient conditions are established, under which the composition $BA$ of operators $A$ and $B$ has the Noether property and is normally solvable. Similar conditions, guaranteeing that the operator $A$ is normally solvable or possesses the Noether property, are obtained for the operators $B$ and $AВ$ .
English version (Springer): Ukrainian Mathematical Journal 45 (1993), no. 8, pp 1316-1320.
Citation Example: Plaksa S. A. On the composition of operators in vector spaces and their Noether property // Ukr. Mat. Zh. - 1993. - 45, № 8. - pp. 1177–1180.