Cristian Chifu-Oros:Minimum value of a matrix norm with applications to maximum principles for second order differential systems, p.25-37

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The purpose of this paper is to use an estimation of minimum value of a matrix norm to improve some maximum principles given by I.A. Rus in 1968.

Key Words: systems of differential equations, maximum principles, estimation of the minimum value of a matrix norm.

2000 Mathematics Subject Classification: Primary: 34C,
Secondary: 15A60.