Abstract:
A circle graph is the intersection graph of a set of chords on a circle. A graph is Helly circle if there is a model of chords satisfying the Helly property. In 2003 it was conjectured that Helly circle graphs are exactly diamond-free circle graphs. In this work, we propose a method to compress any Helly circle representation of a graph and give some ideas to advance in an inductive proof of the diamond conjecture. © 2004 Elsevier B.V. All rights reserved.
Registro:
Documento: |
Artículo
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Título: | New advances about a conjecture on Helly circle graphs |
Autor: | Barrionuevo, J.M.; Calvo, A.; Durán, G.; Protti, F. |
Filiación: | Departamento de Computación, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina Departamento de Ingeniería Industrial, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Santiago, Chile IM and NCE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Palabras clave: | circle graphs; compression; diamond; Helly circle graphs |
Año: | 2004
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Volumen: | 18
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Página de inicio: | 31
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Página de fin: | 36
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DOI: |
http://dx.doi.org/10.1016/j.endm.2004.06.005 |
Título revista: | Electronic Notes in Discrete Mathematics
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Título revista abreviado: | Electron. Notes Discrete Math.
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ISSN: | 15710653
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15710653_v18_n_p31_Barrionuevo |
Referencias:
- Bouchet, A., Reducing prime graphs and recognizing circle graphs (1987) Combinatorica, 7 (3), pp. 243-254
- Durán, G., Some new results on circle graphs (2003) Matemática Contemporánea, 25, pp. 91-106
- Durán, G., Gravano, A., Groshaus, M., Protti, F., Szwarcfiter, J., On a conjecture concerning Helly circle graphs (2003) Pesquisa Operacional, 23 (1), pp. 221-229
- Even, S., Itai, A., Queues, stacks and graphs (1971) Theory of Machines and Computations, pp. 71-86. , Kohavi A., and Paz A. (Eds), Acad. Press
- Gabor, C., Supowit, K., Hsu, W., Recognizing circle graphs in polynomial time (1989) Journal of the ACM, 36 (3), pp. 435-473
- Knuth, D., (1969) The Art of Computer Programming Vol. 1, , Addison-Wesley
- Naji, W., Reconnaissance des graphes de cordes (1985) Discrete Math., 54, pp. 329-337
- Spinrad, J., Recognition of circle graphs (1994) Journal of Algorithms, 16 (2), pp. 264-282
Citas:
---------- APA ----------
Barrionuevo, J.M., Calvo, A., Durán, G. & Protti, F.
(2004)
. New advances about a conjecture on Helly circle graphs. Electronic Notes in Discrete Mathematics, 18, 31-36.
http://dx.doi.org/10.1016/j.endm.2004.06.005---------- CHICAGO ----------
Barrionuevo, J.M., Calvo, A., Durán, G., Protti, F.
"New advances about a conjecture on Helly circle graphs"
. Electronic Notes in Discrete Mathematics 18
(2004) : 31-36.
http://dx.doi.org/10.1016/j.endm.2004.06.005---------- MLA ----------
Barrionuevo, J.M., Calvo, A., Durán, G., Protti, F.
"New advances about a conjecture on Helly circle graphs"
. Electronic Notes in Discrete Mathematics, vol. 18, 2004, pp. 31-36.
http://dx.doi.org/10.1016/j.endm.2004.06.005---------- VANCOUVER ----------
Barrionuevo, J.M., Calvo, A., Durán, G., Protti, F. New advances about a conjecture on Helly circle graphs. Electron. Notes Discrete Math. 2004;18:31-36.
http://dx.doi.org/10.1016/j.endm.2004.06.005