ISSN 2079-6900 (Print) 
ISSN 2587-7496 (Online)

Middle Volga Mathematical Society Journal

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Solutions stability on linear approximation to Cauchy problem , branching equation in the root subspace, symmetry.

V.A. Trenogin1, B.V. Loginov2, L.R. Kim-Tyan3

AnnotationV.A.Trenogin results \citetwo{Loginovb7}{Loginovb8} about solutions stability to Cauchy problem for differential equations in Banach space on linear approximation in the case of degenerate linearization are presented from the point of view of bifurcation equation in the root subspace. Conclusions are made for the presence of group and non-group symmetries.
KeywordsDifferential equation in Banach space, stability, branching equation in the root subspace, symmetry.

1Professor of Higher Mathematics Chair, National Research Technological University <>, Moscow; vtrenogin@mail.ru

2Professor of Higher Mathematics Chair, Ulyanovsk State Technical University, Ulyanovsk; loginov@ulstu.ru

3Associate professor of Higher Mathematics Chair, National Research Technological University <>, Moscow; kim-tyan@mail.ru

Citation: V.A. Trenogin, B.V. Loginov, L.R. Kim-Tyan , "[ Solutions stability on linear approximation to Cauchy problem , branching equation in the root subspace, symmetry.]", Zhurnal Srednevolzhskogo matematicheskogo obshchestva,12:3 (2010) 8–17 (In Russian)