Abstract
This paper studies the relation between associativity of uninorms and geometry of their level sets which is enabled by adopting the concepts of web geometry, a branch of differential geometry, and the Reidemeister closure condition. Based on this result, the structure of some special classes of uninorms is described. Namely, it is the class of uninorms with involutive underlying t-norms and t-conorms and the class of uninorms with involutive underlying t-norms and idempotent underlying t-conorm (as well as the corresponding dual cases).
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References
Aczél, J.: Quasigroups, nets and nomograms. Advances in Mathematics 1, 383–450 (1965)
Blaschke, W., Bol, G.: Geometrie der Gewebe, topologische Fragen der Differentialgeometrie. Springer, Berlin (1939) (in German)
De Baets, B.: Idempotent uninorms. European Journal of Operational Research 118, 631–642 (1999)
Fodor, J., De Baets, B.: Uninorm Basics. STUDFUZZ, vol. 215, pp. 49–64. Springer, Heidelberg (2007)
Fodor, J., Yager, R.R., Rybalov, A.: Structure of uninorms. Internat. J. Uncertain. Fuzziness Knowledge-Based Systems 5, 411–427 (1997)
Jenei, S.: Structural description of involutive uninorms and finite uninorm chains via skew symmetrization. In: Journal of Logic and Computation (to appear)
Maes, K.C., De Baets, B.: A contour view on uninorm properties. Kybernetika 42, 303–318 (2006)
MartĂn, J., Mayor, G., Torrens, J.: On locally internal monotonic operations. Fuzzy Sets and Systems 137(1), 27–42 (2003)
PetrĂk, M., Sarkoci, P.: Convex combinations of nilpotent triangular norms. Journal of Mathematical Analysis and Applications 350, 271–275 (2009), doi:10.1016/j.jmaa.2008.09.060
PetrĂk, M., Sarkoci, P.: Associativity of triangular norms characterized by the geometry of their level sets (submitted)
Reidemeister, K.: Topologische Fragen der Differentialgeometrie. V. Gewebe und Gruppen. Mathematische Zeitschrift 29(1), 427–435 (1929) (in German)
Yager, R., Rybalov, A.: Uninorm aggregation operators. Fuzzy Sets and Systems 80, 111–120 (1996)
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PetrĂk, M., Mesiar, R. (2012). Web-Geometric View on Uninorms and Structure of Some Special Classes. In: Greco, S., Bouchon-Meunier, B., Coletti, G., Fedrizzi, M., Matarazzo, B., Yager, R.R. (eds) Advances in Computational Intelligence. IPMU 2012. Communications in Computer and Information Science, vol 299. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-31718-7_39
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DOI: https://doi.org/10.1007/978-3-642-31718-7_39
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-31717-0
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