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AMC
2010
14 years 9 months ago
2010
The problem formulated in the title is investigated. The case of nilpotent matrices of size at most 4 allows a unitary treatment. The numerical range of a nilpotent matrix M of siz...
AMC
2010
14 years 9 months ago
2010
In this paper, we investigate the global attractivity of negative solutions of the nonlinear difference equation xn+1 = 1 - xn-k A + xn , n = 0, 1, . . . , where A (-, 0), k is a...
AMC
2010
14 years 9 months ago
2010
This article extends the Leitmann equivalence method to a class of problems featuring conjugate points. The class is characterised by the requirement that the set of indifference ...
AMC
2010
14 years 9 months ago
2010
An Ambrosetti-Prodi type exact multiplicity result is proved for a diffusive logistic equation with harvesting. We show that a modified diffusive logistic mapping has exactly eith...
AMC
2010
14 years 8 months ago
2010
Exact solutions of the Nizhnik-Novikov-Veselov equation by Li [New kink-shaped solutions and periodic wave solutions for the (2+1)-dimensional Sine-Gordon equation, Appl. Math. Co...