Discrete quadratic functionals and symplectic difference systems

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Authors

DOŠLÝ Ondřej

Year of publication 2004
Type Article in Periodical
Magazine / Source Funct. Differ. Equ.
MU Faculty or unit

Faculty of Science

Citation
Field General mathematics
Keywords Discrete quadratic functional; kernel condition; nonnegativity; Picone's identity
Description The survey of recent results on positivity and nonnegativity of discrete quadratic functionals corresponding to symplectic difference systems are presented and a new condition for nonegativity of these functionals is established.
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