Janko-Kharaghani-Tonchev Graph

The Janko-Kharaghani-Tonchev graph is a strongly regular graph on 324 vertices and 24786 edges. It has regular parameters (nu,k,lambda,mu)=(324,153,72,72).

It is implemented in the Wolfram Language as GraphData["JankoKharaghaniTonchevGraph"].

See also

Ionin-Kharaghani Graph, Janko-Kharaghani Graphs, Strongly Regular Graph

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Janko, Z.; Kharaghani, H.; and Tonchev, V. D. "The Existence of a Bush-Type Hadamard Matrix of Order 324 and Two New Infinite Classes of Symmetric Designs." Des. Codes Cryptogr. 24, 225-232, 2001.

Cite this as:

Weisstein, Eric W. "Janko-Kharaghani-Tonchev Graph." From MathWorld--A Wolfram Web Resource.

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