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ARSCOM
2006
63views more  ARSCOM 2006»
13 years 11 months ago
An addition structure on incidence matrices of a BIB design
K. Matsubara, M. Sawa, D. Matsumoto, H. Kiyama, S....
ARSCOM
2006
74views more  ARSCOM 2006»
13 years 11 months ago
Some New Steiner 2-Designs S(2, 4, 37)
Automorphisms of Steiner 2-designs S(2, 4, 37) are studied and used to find many new examples. Some of the constructed designs have S(2, 3, 9) subdesigns, closing the last gap in t...
Vedran Krcadinac
ARSCOM
2006
81views more  ARSCOM 2006»
13 years 11 months ago
A Counting of the minimal realizations of the posets of dimension two
The posets of dimension 2 are those posets whose minimal realizations have two elements, that is, which may be obtained as the intersection of two of their linear extensions. Gall...
Pierre Ille, Jean-Xavier Rampon
ARSCOM
2006
202views more  ARSCOM 2006»
13 years 11 months ago
Domination in Planar Graphs with Small Diameter II
MacGillivray and Seyffarth (J. Graph Theory 22 (1996), 213
Michael Dorfling, Wayne Goddard, Michael A. Hennin...
ARSCOM
2006
72views more  ARSCOM 2006»
13 years 11 months ago
A Sufficient Condition for Quasi-Claw-Free Hamiltonian Graphs
Abstract. There are several well-known and important hamiltonian results for claw-free graphs but only a few are concerned with quasi-claw-free graphs. In this note, we provide a n...
Jou-Ming Chang, An-Hang Chen