The 4-GDDs of type 3562 |
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Institution: | School of Mathematics and Statistics, UNSW Sydney, NSW 2052, Australia |
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Abstract: | We determine the 22 isomorphism classes of 4-GDDs with group type and compare their automorphism groups. We also observe for the first time an example of a three dimensional Pasch triangle in a GDD. |
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Keywords: | Group divisible design GDD Automorphism Isomorphism Pasch triangle |
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