License: Creative Commons Attribution-NoDerivs 3.0 Unported license (CC BY-ND 3.0)
When quoting this document, please refer to the following
DOI: 10.4230/LIPIcs.STACS.2008.1362
URN: urn:nbn:de:0030-drops-13620
URL: http://dagstuhl.sunsite.rwth-aachen.de/volltexte/2008/1362/
Go to the corresponding LIPIcs Volume Portal


Kao, Jui-Yi ; Shallit, Jeffrey ; Xu, Zhi

The Frobenius Problem in a Free Monoid

pdf-format:
22011.KaoJuiYi.Paper.1362.pdf (0.2 MB)


Abstract

The classical Frobenius problem over ${mathbb N}$ is to compute
the largest integer $g$ not representable as a non-negative integer
linear combination of non-negative integers $x_1, x_2, ldots,
x_k$, where $gcd(x_1, x_2, ldots, x_k) = 1$. In this paper we
consider novel 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 several analogues of
$g$, with the precise bound depending on the particular measure
chosen.


BibTeX - Entry

@InProceedings{kao_et_al:LIPIcs:2008:1362,
  author =	{Jui-Yi Kao and Jeffrey Shallit and Zhi Xu},
  title =	{{The Frobenius Problem in a Free Monoid}},
  booktitle =	{25th International Symposium on Theoretical Aspects of Computer Science},
  pages =	{421--432},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-06-4},
  ISSN =	{1868-8969},
  year =	{2008},
  volume =	{1},
  editor =	{Susanne Albers and Pascal Weil},
  publisher =	{Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{http://drops.dagstuhl.de/opus/volltexte/2008/1362},
  URN =		{urn:nbn:de:0030-drops-13620},
  doi =		{10.4230/LIPIcs.STACS.2008.1362},
  annote =	{Keywords: Combinatorics on words, Frobenius problem, free monoid}
}

Keywords: Combinatorics on words, Frobenius problem, free monoid
Collection: 25th International Symposium on Theoretical Aspects of Computer Science
Issue Date: 2008
Date of publication: 06.02.2008


DROPS-Home | Fulltext Search | Imprint | Privacy Published by LZI