Abstract
Direct and recursive constructions are established for graph designs for K 2 × K 6 grid-blocks. Using these, the existence of graph designs of index one in which the blocks are K 2 × K 6 grid-blocks is completely determined: A (K 2 × K 6)-design of order v exists if and only if \({v\equiv1\pmod{72}}\).
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Wang, C., Colbourn, C.J. The Existence of (K 2 × K 6)-Designs. Graphs and Combinatorics 29, 1557–1567 (2013). https://doi.org/10.1007/s00373-012-1187-6
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DOI: https://doi.org/10.1007/s00373-012-1187-6
Keywords
- Balanced incomplete block design
- Graph design
- Pairwise balanced design
- Group divisible design
- Grid design