Matroid database

Search

393 matroids, showing 1–50

label ▲rank ⇅n ⇅#bases ⇅#automorphisms ⇅simple ⇅char set ⇅rs dim ⇅birational type ⇅
4.8.7248628✓all1rational
4.8.1114864384✓all4rational
4.8.15948626✓all2rational over Q(a)/(a^2 - a + 1)
4.8.178486116✓all2rational
4.8.19348628✓∅-1empty
4.8.210486016✓all2empty
4.8.214486064✓all but 21rational
4.8.22848612✓all2point over Q(a)/(a^2 - a - 1)
4.8.23048618✓all1point over Q(a)/(a^2 - a + 1)
4.8.263486024✓∅-1empty
4.8.26948561344✓∅-1empty
4.8.29348608✓all but 22rational
4.8.30748592✓{2}-1rational
4.8.312485824✓∅-1empty
4.8.316485724✓all6rational
4.8.320485296✗all5rational
4.8.3244860720✓all4rational
4.8.35848592✓all4rational
4.8.36048608✓all2rational
4.8.366485824✓all7empty
4.8.369485724✓all6rational
4.8.37448588✓all4rational
4.8.37648568✓all4rational
4.8.3774850240✗all3rational
4.8.3854854144✓all4rational
4.8.39448582✓all3rational
4.8.40848586✓all but 21rational
4.8.41648582✓all3rational
4.8.42048571✓all1rational
4.8.42348572✓all5rational
4.8.42648572✓all5rational
4.8.42848566✓all4point over Q(a)/(a^2 - a + 1)
4.8.43348572✓all4rational
4.8.43548552✓all4rational
4.8.437485412✓all3rational
4.8.43948552✓all4rational
4.8.44148532✓all3rational
4.8.44248524✓all2rational
4.8.45048562✓all2rational
4.8.45348554✓all4rational
4.8.45648534✓all3rational
4.8.458485448✓all3rational
4.8.46148568✓all3rational
4.8.46348552✓all2rational
4.8.46648548✓all2empty
4.8.467485112✓all1rational
4.8.471485448✓all1rational
4.8.47848562✓all3rational
4.8.48148552✓all3rational
4.8.483485112✓all2rational

next ›