> On 1/04/2015, at 2041, Gordon <[email protected]> wrote: > > In a comment to Dillon's latest matroidunion blog post, Sandra Kingan said > "The 3-connected rank 5 and 11 element matroids are only 32 in number" and > then later in the same comment that only 20 do not have an AG(3,2)-minor > > Even assuming that she means "binary matroids" I cannot make my numbers match > hers. > > Here is an array of 37 BinaryMatroids. I believe that > > - they each have rank 5 and size 11 > - they are all 3-connected (at least) > - they are pairwise non-isomorphic > - 24 of them do NOT have an AG(3,2)-minor > - 13 of them do have an AG(3,2) minor and > > Could anyone here confirm that I am not losing my mind (more than usual) and > that these assertions are true? > > Thanks > > Gordon
According to sage-matroid, all your assertions are true. I made some boo-boos, but the full session can be viewed at http://pastebin.com/bC9Xac4S Michael -- --- You received this message because you are subscribed to the Google Groups "sage-matroid" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
