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JCT
2006
14 years 9 months ago
2006
Let W be a finite or an affine Coxeter group and Wc the set of all the fully commutative elements in W. For any left cell L of W containing some fully commutative element, our main...
JCT
2006
14 years 9 months ago
2006
Eroh and Oellermann defined BRR(G1, G2) as the smallest N such that any edge coloring of the complete bipartite graph KN,N contains either a monochromatic G1 or a multicolored G2....
JCT
2006
14 years 9 months ago
2006
Difference Systems of Sets (DSS) are combinatorial configurations that arise in connection with code synchronization. This paper gives new constructions of DSS obtained from parti...
JCT
2000
14 years 9 months ago
2000
Following ideas of Richer (2000) we introduce the notion of unordered regressive Ramsey numbers or unordered Kanamori-McAloon numbers. We show that these are of Ackermannian growt...
JCT
2002
14 years 9 months ago
2002
This paper presents a systematic approach to the discovery, interpretation and veri cation of various extensions of Hurwitz's multinomial identities, involving polynomials de...