 |
 |
 |
 |
 |
| Home |
Catalog of Oriented Matroids |
Catalog of Point Configurations |
Catalog of Hyperplane Arrangements |
Glossary |
Catalog of Isomorphism Classes of Oriented Matroids
The following table shows the number of isomorphism classes of oriented matroids
(where card is the cardinality of a simple representative).
Data can be accessed by clicking on the corresponding number (if available):
|
|
| |
card = 2 |
card = 3 |
card = 4 |
card = 5 |
card = 6 |
card = 7 |
card = 8 |
card = 9 |
card = 10 |
| rank = 2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| rank = 3 (dim = 2) |
1 |
2 |
4 |
17 |
143 |
4 890 |
461 053 |
95 052 532 |
| rank = 4 (dim = 3) |
1 |
3 |
12 |
206 |
181 472 |
unknown |
unknown |
| rank = 5 (dim = 4) |
1 |
4 |
25 |
6 029 |
unknown |
unknown |
| rank = 6 (dim = 5) |
1 |
5 |
50 |
508 321 |
unknown |
| rank = 7 (dim = 6) |
1 |
6 |
91 |
unknown |
| rank = 8 (dim = 7) |
1 |
7 |
164 |
| rank = 9 (dim = 8) |
1 |
8 |
| rank = 10 (dim = 9) |
1 |
|
Cardinality = 8, rank = 6 (dimension = 5)
List of the 50 representatives of IC(8,6), ordered by the RevLex-Index.
The numbers above the signs indicate the elements of the corresponding basis.
1111112111112111121112112123
2222233222233222332233233444
3333444333444334443444555555
4445555445555455556666666666
5566666566666777777777777777
6777777888888888888888888888
IC(8,6, 1) = ++++++++++++++++++++++++++++
IC(8,6, 2) = 0+++++++++++++++++++++++++++
IC(8,6, 3) = 0++++++++++++0++--++--+----+
IC(8,6, 4) = 0++++++++++++0+++-+++-++-+--
IC(8,6, 5) = 0++++++++++++0++++++++++++++
IC(8,6, 6) = 0++++++++++++0++++++++0+-+--
IC(8,6, 7) = 0++++++++++++0++++++++0+++++
IC(8,6, 8) = 0++++++++++++0++++++++0++++0
IC(8,6, 9) = 00+++++0++++++++++++++++++++
IC(8,6,10) = 00+++++0++++++++++0++-++-+--
IC(8,6,11) = 00+++++0++++++++++0+++++++++
IC(8,6,12) = 00+++++0++++++++++0++++++0--
IC(8,6,13) = 00+++++0++++++++++0++++++0++
IC(8,6,14) = 00+++++0++++++++++00+-0+-+--
IC(8,6,15) = 00+++++0++++++++++00++0+++++
IC(8,6,16) = 00+++++0++++++++++00++0++++0
IC(8,6,17) = 000++++00++++0++++++++++++++
IC(8,6,18) = 000++++00++++0++++++++0+-+--
IC(8,6,19) = 000++++00++++0++++++++0+++++
IC(8,6,20) = 000++++00++++0++++++++0++++0
IC(8,6,21) = 000++++00++++0++++++++00+0++
IC(8,6,22) = 000++++00++++0++++++++000000
IC(8,6,23) = 0000+++000+++00+++0+++++++++
IC(8,6,24) = 0000+++000+++00+++0++++++0++
IC(8,6,25) = 0000+++000+++00+++0++++++000
IC(8,6,26) = 0000000+++++++++++++++++++++
IC(8,6,27) = 00000000++++++++++++++++++++
IC(8,6,28) = 00000000++++++++++0++-++-+--
IC(8,6,29) = 00000000++++++++++0+++++++++
IC(8,6,30) = 00000000++++++++++0++++++0++
IC(8,6,31) = 000000000++++0++++++++++++++
IC(8,6,32) = 000000000++++0++++++++0+-+--
IC(8,6,33) = 000000000++++0++++++++0+++++
IC(8,6,34) = 000000000++++0++++++++0++++0
IC(8,6,35) = 000000000++++0++++++++00+0++
IC(8,6,36) = 0000000000+++00+++0+++++++++
IC(8,6,37) = 0000000000+++00+++0++++++0++
IC(8,6,38) = 0000000000+++00+++0++++++000
IC(8,6,39) = 0000000000000+++++++++++++++
IC(8,6,40) = 00000000000000++++++++++++++
IC(8,6,41) = 00000000000000++++++++0+-+--
IC(8,6,42) = 00000000000000++++++++0+++++
IC(8,6,43) = 00000000000000++++++++0++++0
IC(8,6,44) = 000000000000000+++0+++++++++
IC(8,6,45) = 000000000000000+++0++++++0++
IC(8,6,46) = 000000000000000+++0++++++000
IC(8,6,47) = 000000000000000000++++++++++
IC(8,6,48) = 0000000000000000000+++++++++
IC(8,6,49) = 0000000000000000000++++++0++
IC(8,6,50) = 0000000000000000000000++++++