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  1. Home > Articles & Issues >
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  3. Permutation Polytope ...
Conference paper

Permutation Polytopes of Cyclic Groups

Barbara Baumeister (1) (2), Christian Haase (3) (4), Benjamin Nill (5), Andreas Paffenholz ORCID (6)
(1) Universität Bielefeld
(2) Universität Bielefeld = Bielefeld University
(3) Goethe-Universität Frankfurt am Main
(4) Goethe University Frankfurt = Goethe-Universität Frankfurt am Main
(5) Case Western Reserve University [Cleveland]
(6) Darmstadt University of Technology [Darmstadt]
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Imported on
January 31, 2017
Published on
December 31, 2011
Last modified on
March 31, 2025
Volume
DMTCS Proceedings vol. AR, 24th International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2012)
Proceedings
DOI
10.46298/dmtcs.3051
License
https://about.hal.science/hal-authorisation-v1
Lattice Polytopes with a View Toward Algebraic Geometry
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Permutation Polytopes of Cyclic Groups

Barbara Baumeister (1) (2), Christian Haase (3) (4), Benjamin Nill (5), Andreas Paffenholz ORCID (6)
(1) Universität Bielefeld
(2) Universität Bielefeld = Bielefeld University
(3) Goethe-Universität Frankfurt am Main
(4) Goethe University Frankfurt = Goethe-Universität Frankfurt am Main
(5) Case Western Reserve University [Cleveland]
(6) Darmstadt University of Technology [Darmstadt]
Abstract
English
We investigate the combinatorics and geometry of permutation polytopes associated to cyclic permutation groups, i.e., the convex hulls of cyclic groups of permutation matrices. In the situation that the generator of the group consists of at most two orbits, we can give a complete combinatorial description of the associated permutation polytope. In the case of three orbits the facet structure is already quite complex. For a large class of examples we show that there exist exponentially many facets.
French
Nous ètudions les propriètès combinatoires et gèomètriques des polytopes de permutations pour des groupes cycliques. C'est à dire, donnè un groupe cyclique de matrices de permutations, nous considèrons son enveloppe convexe. Si le gènèrateur du groupe possède un ou deux orbites il y a une dèscription simple du polytope. Par contre, le cas de trois (ou plus) orbites est beaucoup plus compliquè. Pour une classe ample d'examples nous construisons un nombre exponentiel de faces de co-dimension un.
Keywords
  • [INFO.INFO-DM]Computer Science [cs]/Discrete Mathematics [cs.DM]
  • permutation groups
  • cyclic groups
  • convex polytopes
  • 0/1-polytopes
  • marginal polytopes
Cited by

Source: OpenCitations

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    Journal reference : Volume 13, 2025, pp.

    DOI : 10.1515/spma-2025-0034
  • A property of the Birkhoff polytope

    Algebraic Combinatorics

    Authors : Barbara Baumeister, Frieder Ladisch

    Journal reference : Volume 1, 2018, pp. 275-281

    DOI : 10.5802/alco.6
  • On permutation polytopes: notions of equivalence

    Journal of Algebraic Combinatorics

    Authors : Barbara Baumeister ORCID, Matthias Grüninger

    Journal reference : Volume 41, 2014, pp. 1103-1114

    DOI : 10.1007/s10801-014-0568-8
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