Matroid database

Search

…or describe it by its bases, non-bases or lines

Any labeling of the ground set $\{1,\dots,n\}$ will do: we compute the canonical id. Sets are written as {1,2,3}, one per line, or, when $n \le 9$, as digit strings such as 123 145. Lines are the lines with at least three points of a simple rank-3 matroid. A revlex encoding is a string of * and 0.

381,906 matroids, showing 19,551–19,600

label ▲rank ⇅n ⇅#bases ⇅#automorphisms ⇅simple ⇅char set ⇅rs dim ⇅birational type ⇅
3.12.3763373122081✓all6?
3.12.3763503122071✓all6?
3.12.3763553122081✓all6?
3.12.3763813122071✓all6?
3.12.3765013122071✓all6?
3.12.3765063122071✓all6?
3.12.3765183122081✓all6?
3.12.3765563122081✓all6?
3.12.3765643122071✓all6?
3.12.3765723122061✓all6?
3.12.3765893122071✓all6?
3.12.3766083122081✓all6?
3.12.3766093122091✓all6?
3.12.3766253122081✓all6?
3.12.3766343122071✓all6?
3.12.3766403122081✓all6?
3.12.3767013122081✓all6?
3.12.3767433122061✓all6?
3.12.3768043122091✓all6?
3.12.3768393122091✓all6?
3.12.3768673122091✓all6?
3.12.3769003122081✓all6?
3.12.3769423122081✓all6?
3.12.3769453122081✓all6?
3.12.3769813122081✓all6?
3.12.3769903122081✓all6?
3.12.3769923122071✓all6?
3.12.3769943122081✓all6?
3.12.3770753122091✓all6?
3.12.3770873122081✓all6?
3.12.3770923122081✓all6?
3.12.3770943122081✓all6?
3.12.3770973122081✓all6?
3.12.3771033122071✓all6?
3.12.3771043122071✓all6?
3.12.3771113122081✓all6?
3.12.3771273122081✓all6?
3.12.3771503122081✓all6?
3.12.3771513122071✓all6?
3.12.3771823122081✓all6?
3.12.3772193122081✓all6?
3.12.3772503122081✓all6?
3.12.3773183122071✓all6?
3.12.3773243122091✓all6?
3.12.3773393122091✓all6?
3.12.3774533122091✓all6?
3.12.3774693122071✓all6?
3.12.3775023122091✓all6?
3.12.3775343122071✓all6?
3.12.3776193122071✓all6?

« first ‹ prev next ›