Disconjugacy of symplectic systems and positive definiteness of block tridiagonal matrices
Autoři | |
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Rok publikování | 1999 |
Druh | Článek v odborném periodiku |
Časopis / Zdroj | Rocky Mountain Journal of Mathematics |
Fakulta / Pracoviště MU | |
Citace | |
Obor | Obecná matematika |
Klíčová slova | symplectic system; linear Hamiltonian difference system; disconjugacy; principal solution; Sturm-Liouville difference equation |
Popis | In this paper we discuss disconjugacy of symplectic difference systems in the relation with positive definiteness of a certain associated block tridiagonal matrix. Analogous results have been recently proven for a special form of a symplectic systems - linear Hamiltonian difference systems and Sturm-Liouville difference equations. Finally, reciprocal systems are also discussed. |
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