Strong divisibility and lcm-sequences

نویسنده

  • Andrzej Nowicki
چکیده

Let R be an integral domain in which every two nonzero elements have a greatest common divisor. Let (an)n>1 be a sequence of nonzero elements in R. We prove that gcd(an, am) = agcd(n,m) for all n,m > 1 if and only if an = ∏

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تاریخ انتشار 2014