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  1. Home > Articles & Issues >
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  3. Affine and toric arr ...
Conference paper

Affine and toric arrangements

Richard Ehrenborg ORCID (1), Margaret Readdy ORCID (1), Michael Slone (1)
(1) Department of Mathematics
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Imported on
May 10, 2017
Published on
December 31, 2007
Last modified on
March 31, 2025
Volume
DMTCS Proceedings vol. AJ, 20th Annual International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2008)
Proceedings
DOI
10.46298/dmtcs.3625
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https://about.hal.science/hal-authorisation-v1
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Affine and toric arrangements

Richard Ehrenborg ORCID (1), Margaret Readdy ORCID (1), Michael Slone (1)
(1) Department of Mathematics
Abstract
English
We extend the Billera―Ehrenborg―Readdy map between the intersection lattice and face lattice of a central hyperplane arrangement to affine and toric hyperplane arrangements. For toric arrangements, we also generalize Zaslavsky's fundamental results on the number of regions.
French
Nous étendons l'opérateur de Billera―Ehrenborg―Readdy entre le trellis d'intersection et la treillis de faces d'un arrangement hyperplans centraux aux arrangements affines et toriques. Pour les arrangements toriques, nous généralisons aussi les résultats fondamentaux de Zaslavsky sur le nombre de régions.
Keywords
  • [MATH.MATH-CO]Mathematics [math]/Combinatorics [math.CO]
  • [INFO.INFO-DM]Computer Science [cs]/Discrete Mathematics [cs.DM]
  • toric arrangement
  • hyperplane arrangement
  • characteristic polynomial
  • coalgebra
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