Now showing items 1-3 of 3
Enumeration of small nonisomorphic 1-rotational twofold triple systems
In this paper, twofold triple systems of order v are enumerated for all v ≤ 19. The existence of TS(v , 2)'s (all terms are defined in §2) is completely settled; the condition v -0 or 1 (mod 3) is known to be both ...
Affine extensions of the Petersen graph and 2-arc-transitive graphs of girth 5
Let Qn denote the set of the flag-transitive geometries with the diagram. We construct examples of finite Qn-geometries for any n>= 2. This allows us to obtain new examples of finite 2-arc-transitive graphs of girth 5, ...
Skew-symmetric association schemes with two classes and strongly regular graphs of type L 2n-1(4n-1)
A construction of a pair of strongly regular graphs Γn and Γ'n of type L 2n-1 (4n-1) from a pair of skew-symmetric association schemes W, W' of order 4n-1 is presented. Examples of graphs with the same parameters as Γn and ...