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Overview Definition

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Overview From multiplicative d.h. subgroups ▶ From additive d.h. subgroups

Overview Theorems (2,6)NBIBDs (3,6)NBIBDs Small NBIBDs INBIBDs

Overview Nested 3-Designs ▶

Overview v=8 v=12 v=16 v=18 v=20 v=21 v=22

Blocks of 9 and 3 Blocks of 15 and 3 Blocks of 15 and 5 Blocks of 21 and 3 Blocks of 21 and 7 Applet to get blocks

Construction Example Table of solutions