Transversal Design

A transversal design of order , block size , and index is a triple(, , ) such that

1. is a set of elements,

2. is a partition of into classes, each of size (the ``groups''),

3. is a collection of -subsets of (the ``blocks''), and

4. Every unordered pair of elements from is contained in either exactly one group or in exactly blocks, but not both.

References

Colbourn, C. J. and Dinitz, J. H. (Eds.) CRC Handbook of Combinatorial Designs. Boca Raton, FL: CRC Press, p. 112, 1996.

• Dougall-Ramanujan Identity
• Dougall's Theorem
• Doughnut
• Douglas-Neumann Theorem
• Dovetailing Problem
• Dowker Notation
• Down Arrow Notation
• Dozen
• Dragon Curve
• Dragon Fractal
• Draughts
• Drinfeld's Symmetric Space
• Droz-Farny Circles
• Drum
• D-Statistic
• D-Triangle
• Dual Basis
• Dual Bivector
• Dual Graph
• Duality Principle
• Duality Theorem
• Dual Map
• Dual Polyhedron
• Dual Scalar
• Dual Solid