ABSTRACT
Open Problem 8.6 Assume that {Pn}~0 and {qn}~0 are converyent sequences of nonnegative real numbers with finite limits,
Open Problem 8.7 Auume that {pn}~0 and {qn}~0 are period two sequences of nonnegative real numbers. Investigate the global chamcter of all positive solutioM of Eq{J!3}. Extend and genemlize.
