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2,480 matroids, showing 1–50
| label ▼ | rank ⇅ | n ⇅ | #bases ⇅ | #automorphisms ⇅ | simple ⇅ | char set ⇅ | rs dim ⇅ | birational type ⇅ |
|---|---|---|---|---|---|---|---|---|
| 4.9.187913 | 4 | 9 | 93 | 6 | ✓ | all | 2 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.187117 | 4 | 9 | 97 | 2 | ✓ | all but 2 | 1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.186856 | 4 | 9 | 97 | 1 | ✓ | all | 1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.186218 | 4 | 9 | 99 | 12 | ✓ | ∅ | -1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.186194 | 4 | 9 | 99 | 6 | ✓ | ∅ | -1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.185888 | 4 | 9 | 101 | 2 | ✓ | all | 1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.185823 | 4 | 9 | 101 | 6 | ✓ | all | 1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.185822 | 4 | 9 | 102 | 6 | ✓ | all | 2 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.184928 | 4 | 9 | 62 | 6 | ✗ | ∅ | -1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.184054 | 4 | 9 | 93 | 2 | ✗ | all | 4 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.183720 | 4 | 9 | 92 | 12 | ✗ | all | 2 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.183468 | 4 | 9 | 94 | 12 | ✗ | all | 1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.183023 | 4 | 9 | 100 | 6 | ✓ | ∅ | -1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.182644 | 4 | 9 | 101 | 2 | ✓ | ∅ | -1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.182454 | 4 | 9 | 102 | 2 | ✓ | all | 2 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.182341 | 4 | 9 | 102 | 1 | ✓ | all | 2 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.182293 | 4 | 9 | 100 | 2 | ✓ | all but 2 | 1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.182280 | 4 | 9 | 102 | 1 | ✓ | all | 3 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.181597 | 4 | 9 | 104 | 1 | ✓ | all | 2 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.181069 | 4 | 9 | 104 | 1 | ✓ | all | 3 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.181012 | 4 | 9 | 104 | 1 | ✓ | ∅ | -1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.180514 | 4 | 9 | 104 | 1 | ✓ | all | 3 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.180340 | 4 | 9 | 104 | 2 | ✓ | all but 2 | 1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.179193 | 4 | 9 | 106 | 2 | ✓ | all | 3 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.179190 | 4 | 9 | 106 | 2 | ✓ | all | 1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.178972 | 4 | 9 | 106 | 1 | ✓ | all | 1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.178971 | 4 | 9 | 107 | 2 | ✓ | all | 2 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.178578 | 4 | 9 | 101 | 2 | ✓ | ∅ | -1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.177584 | 4 | 9 | 104 | 2 | ✓ | all but 2,3 | 1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.177329 | 4 | 9 | 107 | 1 | ✓ | all | 2 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.177122 | 4 | 9 | 107 | 2 | ✓ | ∅ | -1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.177048 | 4 | 9 | 107 | 2 | ✓ | ∅ | -1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.177032 | 4 | 9 | 105 | 2 | ✓ | all | 3 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.176942 | 4 | 9 | 107 | 1 | ✓ | all | 2 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.176294 | 4 | 9 | 107 | 2 | ✓ | ∅ | -1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.176252 | 4 | 9 | 107 | 1 | ✓ | ∅ | -1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.176133 | 4 | 9 | 107 | 2 | ✓ | ∅ | -1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.176101 | 4 | 9 | 108 | 2 | ✓ | all | 3 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.175851 | 4 | 9 | 101 | 1 | ✓ | all | 1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.175301 | 4 | 9 | 107 | 1 | ✓ | all but 2 | 3 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.175205 | 4 | 9 | 107 | 2 | ✓ | all | 2 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.175168 | 4 | 9 | 107 | 4 | ✓ | all | 4 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.175052 | 4 | 9 | 107 | 1 | ✓ | all | 3 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.175030 | 4 | 9 | 107 | 2 | ✓ | all | 4 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.174967 | 4 | 9 | 104 | 1 | ✓ | ∅ | -1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.174357 | 4 | 9 | 107 | 2 | ✓ | all | 4 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.174296 | 4 | 9 | 107 | 1 | ✓ | all but 2 | 1 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.174230 | 4 | 9 | 107 | 1 | ✓ | all | 3 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.173836 | 4 | 9 | 107 | 1 | ✓ | all | 3 | rational over Q(a)/(a^2 - a + 1) |
| 4.9.173641 | 4 | 9 | 107 | 1 | ✓ | all | 3 | rational over Q(a)/(a^2 - a + 1) |