Computer Science – Discrete Mathematics
Scientific paper
2007-08-23
Computer Science
Discrete Mathematics
19 pages; preliminary announcement
Scientific paper
The classical Frobenius problem is to compute the largest number g not representable as a non-negative integer linear combination of non-negative integers x_1, x_2, ..., x_k, where gcd(x_1, x_2, ..., x_k) = 1. In this paper we consider generalizations of the Frobenius problem to the noncommutative setting of a free monoid. Unlike the commutative case, where the bound on g is quadratic, we are able to show exponential or subexponential behavior for an analogue of g, depending on the particular measure chosen.
Kao Jui-Yi
Shallit Jeffrey
Xu Zhi
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