A remark on focal points of recessive solutions of discrete symplectic systems

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Authors

DOŠLÝ Ondřej KRATZ Wer

Year of publication 2010
Type Article in Periodical
Magazine / Source J. Math. Anal. Appl.
MU Faculty or unit

Faculty of Science

Citation
Field General mathematics
Keywords Symplectic difference system; recessive solution; comparative index
Description We investigate nonoscillatory and controllable symplectic difference systems. We show that the recessive solution of such a system at infinity has the same number of focal points (counting multiplicities) as the recessive solution at v minus nekonecnu.
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