Recent activity
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10305dec…· Reorder set to0,1,14,37,23,17,4,6,13,39,24,25,18,32,19,3,10,16,31,2,35,7,33,8,15,40,38,30,11,26,29,5,21,34,20,27,9,22,28,12,36 -
c0b238e3…· Reorder set to0,1,8,39,35,28,5,24,18,21,29,20,27,2,14,16,15,22,17,19,11,37,12,34,6,32,23,10,38,31,9,40,36,26,7,4,13,30,3,25,33 -
c0b238e3…· Comment: Steiner-line magma on a (41, 5, 1)-BIBD with only translation symmetry (Type A slope pattern). Size 41, fully idempoten… -
d32b07ca…· Reorder set to0,1,9,27,19,5,39,34,28,11,24,6,8,40,25,35,36,38,22,18,15,16,31,13,14,10,26,21,30,37,29,3,7,23,33,20,12,4,2,32,17 -
d32b07ca…· Comment: Steiner-line magma on a (41, 5, 1)-BIBD with only translation symmetry. Size 41, fully idempotent, RC. Like magma#b7e8b… -
b7e8bf90…· Comment: Steiner-line construction on the cyclic S(2, 5, 41) design. Size 41, fully idempotent, right-cancellative. Every pair o… -
b7e8bf90…· Reorder set to0,1,21,39,30,38,13,31,28,17,26,22,12,2,14,33,11,23,6,20,29,9,35,7,37,34,32,19,25,36,8,3,5,15,16,24,10,18,40,27,4 -
5b34fd3d…· Comment: Twisted fiber bundle of shape 5 x 7 (intermediate-twist variant). Same skeleton as magma#c689a91b and magma#26eaf655: 3… -
5b34fd3d…· Reorder set to8,17,10,11,12,9,30,19,29,23,25,27,21,31,18,28,22,24,26,20,32,1,7,2,5,16,13,33,0,6,3,4,15,14,34 -
26eaf655…· Comment: Twisted fiber bundle of shape 5 x 7 (fully twisted variant). Same skeleton as magma#c689a91b: the 35 elements partition… -
26eaf655…· Reorder set to12,17,14,15,16,13,30,24,29,26,27,28,25,31,0,3,1,4,5,2,32,18,23,20,21,22,19,33,6,11,8,9,10,7,34 -
c689a91b…· Comment: Twisted fiber bundle of shape 5 x 7. Structure: the 35 elements partition into 5 disjoint size-7 sub-magmas (the "fiber… -
c689a91b…· Reorder set to0,3,1,4,5,2,30,8,26,17,18,22,13,31,9,27,15,19,23,12,32,7,28,14,20,24,11,33,6,29,16,21,25,10,34 -
b904cba0…· Reorder set to0,1,2,3,20,4,19,9,14,16,5,13,11,10,12,6,17,15,8,18,7 -
b904cba0…· Comment: Size-21 = 3·7 idempotent right-cancellative magma satisfying Eq 677 and Eq 255, in the Steiner-S(2, 5, 21) = PG(2, 4) fa… -
n=21
size 21 · Commentary: Size 21 = 3·7 currently has 6 magmas in the DB, all idempotent, right-cancellative, and satisfying Eq 255. They split in…
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9bef57c1…· Reorder set to0,1,3,20,2,4,13,17,8,5,18,14,9,6,10,19,15,7,12,16,11 -
2eea123a…· Reorder set to0,1,3,20,2,4,13,17,8,5,18,14,9,6,15,19,10,7,12,16,11 -
9bef57c1…· Comment: Size-21 = 3·7 idempotent right-cancellative magma satisfying Eq 677 and Eq 255. **Pencil-through-pivot construction**: 2… -
2eea123a…· Comment: Size-21 = 3·7 idempotent right-cancellative magma satisfying Eq 677 and Eq 255. **Pencil-through-pivot construction**: 2…