Algebraic tools for the construction of colored flows with boundary constraints
Dorkenoo, Marius ; Eglin-Leclerc, Marie-Christine ; Rémila, Eric
RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 38 (2004), p. 229-243 / Harvested from Numdam

We give a linear time algorithm which, given a simply connected figure of the plane divided into cells, whose boundary is crossed by some colored inputs and outputs, produces non-intersecting directed flow lines which match inputs and outputs according to the colors, in such a way that each edge of any cell is crossed by at most one line. The main tool is the notion of height function, previously introduced for tilings. It appears as an extension of the notion of potential of a flow in a planar graph.

Publié le : 2004-01-01
DOI : https://doi.org/10.1051/ita:2004011
Classification:  05C25,  05C85
@article{ITA_2004__38_3_229_0,
     author = {Dorkenoo, Marius and Eglin-Leclerc, Marie-Christine and R\'emila, Eric},
     title = {Algebraic tools for the construction of colored flows with boundary constraints},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     volume = {38},
     year = {2004},
     pages = {229-243},
     doi = {10.1051/ita:2004011},
     mrnumber = {2076401},
     zbl = {1060.05055},
     language = {en},
     url = {http://dml.mathdoc.fr/item/ITA_2004__38_3_229_0}
}
Dorkenoo, Marius; Eglin-Leclerc, Marie-Christine; Rémila, Eric. Algebraic tools for the construction of colored flows with boundary constraints. RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 38 (2004) pp. 229-243. doi : 10.1051/ita:2004011. http://gdmltest.u-ga.fr/item/ITA_2004__38_3_229_0/

[1] T. Chaboud, Pavages et Graphes de Cayley. Ph.D. Thesis, École Normale Supérieure de Lyon (1995).

[2] J.H. Conway and J.C. Lagarias, Tiling with Polyominoes and Combinatorial Group Theory. J. Combin. Theory A 53 (1990) 183-208. | Zbl 0741.05019

[3] R. Hassin, Maximum flows in (s,t) planar networks. Inform. Proc. Lett. 13 (1981) 107. | MR 645454

[4] R. Hassin and D.B. Johnson, An O(nlog 2 n) algorithm for maximum flow in undirected planar networks. SIAM J. Comput. 14 (1985) 612-624. | Zbl 0565.90018

[5] C. Kenyon and R. Kenyon, Tiling a polygon with rectangles. Proc. 33rd FOCS (1992) 610-619. | Zbl 0915.05039

[6] J. Kondev and Ch.L. Henley, Kac-Moody symmetries of critical ground states. Nuclear Phys. B 464 (1996) 540-575. | Zbl 1004.82501

[7] J.C. Lagarias and D.S. Romano, A Polyomino Tiling of Thurston and its Configurational Entropy. J. Combin. Theory A 63 (1993) 338-358. | Zbl 0777.52013

[8] W. Magnus, A. Karass and D. Solitar, Combinatorial Group Theory. Dover Publications, Inc. (1976). | MR 422434 | Zbl 0362.20023

[9] J. Propp, A pedestrian approach to a method of Conway, or a tale of two cities. Internal Report, Massachusetts Institute of Technology (1993). | Zbl 0897.05022

[10] E. Rémila, Tiling a figure using a height in a tree, in Proc. of the 7th annual ACM-SIAM Symposium On Discrete Algorithms (SODA). SIAM eds, Philadelphia (1996) 168-174. | Zbl 0848.68046

[11] W.P. Thurston, Conway's tiling group. Amer. Math. Monthly (1990) 757-773. | Zbl 0714.52007