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 22,601–22,650

label ▲rank ⇅n ⇅#bases ⇅#automorphisms ⇅simple ⇅char set ⇅rs dim ⇅birational type ⇅
3.12.4506193122071✓all6?
3.12.4506453122081✓all6?
3.12.4506493122081✓all6?
3.12.4507373122071✓all6?
3.12.4507693122071✓all6?
3.12.4508293122061✓all6?
3.12.4508563122061✓all6?
3.12.4508733122081✓all6?
3.12.4509413122071✓all6?
3.12.4509523122081✓all6?
3.12.4509803122071✓all6?
3.12.4509893122071✓all6?
3.12.4510153122081✓all6?
3.12.4510173122081✓all6?
3.12.4510393122071✓all6?
3.12.4510643122061✓all6?
3.12.4510933122071✓all6?
3.12.4511003122071✓all6?
3.12.4511083122091✓all6?
3.12.4511323122081✓all6?
3.12.4511403122081✓all6?
3.12.4512083122081✓all6?
3.12.4512253122081✓all6?
3.12.4512363122072✓all6?
3.12.4512673122071✓all6?
3.12.4512773122071✓all6?
3.12.4512893122071✓all6?
3.12.4512993122061✓all6?
3.12.4513033122071✓all6?
3.12.4513133122061✓all6?
3.12.4513863122071✓all6?
3.12.4513903122081✓all6?
3.12.4514793122071✓all6?
3.12.4514913122071✓all6?
3.12.4514923122071✓all6?
3.12.4515113122091✓all6?
3.12.4515223122071✓all6?
3.12.4515343122071✓all6?
3.12.4515573122081✓all6?
3.12.4515633122061✓all6?
3.12.4515663122081✓all6?
3.12.4515703122071✓all6?
3.12.4515753122071✓all6?
3.12.4515793122061✓all6?
3.12.4515993122081✓all6?
3.12.4516133122071✓all6?
3.12.4516773122114✓all6?
3.12.4517003122081✓all6?
3.12.4517023122081✓all6?
3.12.4517173122102✓all6?

« first ‹ prev next ›