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DM
2006
72views more  DM 2006»
15 years 4 months ago
Sparse anti-magic squares and vertex-magic labelings of bipartite graphs
A sparse anti-magic square is an n
I. D. Gray, Jim A. MacDougall
DM
2006
103views more  DM 2006»
15 years 4 months ago
Graph polynomials from principal pivoting
The recursive computation of the interlace polynomial introduced by Arratia, Bollob
Roland Glantz, Marcello Pelillo
DM
2007
68views more  DM 2007»
15 years 4 months ago
Constructions and bounds for (m, t)-splitting systems
D. Deng, Douglas R. Stinson, Pak Ching Li, G. H. J...
DM
2007
67views more  DM 2007»
15 years 4 months ago
Feedback numbers of Kautz digraphs
Jun-Ming Xu, Ye-Zhou Wu, Jia Huang, Chao Yang
DM
2000
66views more  DM 2000»
15 years 3 months ago
From Motzkin to Catalan permutations
For every integer j
Elena Barcucci, Alberto Del Lungo, Elisa Pergola, ...