http://dspace.nbuv.gov.ua:80/handle/123456789/151446 Fri, 17 Apr 2026 08:31:49 GMT 2026-04-17T08:31:49Z http://dspace.nbuv.gov.ua:80/bitstream/id/450400/ http://dspace.nbuv.gov.ua:80/handle/123456789/151446 http://dspace.nbuv.gov.ua:80/handle/123456789/155076 О связанной системе абстракных дифференциальных уравнений типа уравнений термоупругости Герштейн, Л.М. The study of a model system of differential equations arising from the dynamical problems of thermo elasticity is continued. The case of shifts of the general type is investigated. We employ the “commutant method” based on the properties of the operator ∆(A,B)=AB-BA. Fri, 01 Jan 1993 00:00:00 GMT http://dspace.nbuv.gov.ua:80/handle/123456789/155076 1993-01-01T00:00:00Z http://dspace.nbuv.gov.ua:80/handle/123456789/155075 Один метод знаходження спільного лінійного дільника матричних многочленів над довільним полем Прокіп, В.М.; Худий, М.І. Conditions are found for existence of a common linear unital divisor with a given characteristic polynomial of regular matrix polynomials over an arbitrary field. The result obtained is also applied to finding a common solution of matrix polynomial equations. Fri, 01 Jan 1993 00:00:00 GMT http://dspace.nbuv.gov.ua:80/handle/123456789/155075 1993-01-01T00:00:00Z http://dspace.nbuv.gov.ua:80/handle/123456789/155074 О композиции и нетеровости операторов в векторных пространствах Плакса, С.А. 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 operatorA is normally solvable or possesses the Noether property, are obtained for the operators B and BA. Fri, 01 Jan 1993 00:00:00 GMT http://dspace.nbuv.gov.ua:80/handle/123456789/155074 1993-01-01T00:00:00Z http://dspace.nbuv.gov.ua:80/handle/123456789/155072 О решениях квазилинейной дифференциальной системы с периодическими коэффициентами Щеголев, С.А. The existence of a partial solution is proved for a quasilinear differential system whose coefficients are representable by a trigonometric series with slowly varying coefficients and frequency. The solution obtained has the same structure. Fri, 01 Jan 1993 00:00:00 GMT http://dspace.nbuv.gov.ua:80/handle/123456789/155072 1993-01-01T00:00:00Z