Symmetric Hadamard matrices of order 116 and 172 exist
We construct new symmetric Hadamard matrices of orders 92, 116, and 172. While the existence of those of order 92 was known since 1978, the orders 116 and 172 are new. Our construction is based on a recent new combinatorial array (GP array) discovered by N. A. Balonin and J. Seberry. For order 116 w...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2015-10-01
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| Series: | Special Matrices |
| Online Access: | http://www.degruyter.com/view/j/spma.2015.3.issue-1/spma-2015-0022/spma-2015-0022.xml?format=INT |