Víctor Dalmau, Ricard Gavaldà, Pascal Tesson, Denis Thérien. Tractable Clones of Polynomials over Semigroups. In Peter van Beek, editor, Principles and Practice of Constraint Programming - CP 2005, 11th International Conference, CP 2005, Sitges, Spain, October 1-5, 2005, Proceedings. Volume 3709 of Lecture Notes in Computer Science, pages 196-210, Springer, 2005. [doi]
Abstract is missing.