On Sep 22, 7:16 pm, Jaap Spies <[EMAIL PROTECTED]> wrote:
> Mike Hansen wrote:
> > If it's not too much trouble, could you verify that the source of
> > SkewTableau.is_standard is the following:
>
> > t = self
> > #Check to make sure that it is filled with 1...size
> > w = self.to_word()
> > w.sort()
> > if w != range(1, self.size()+1):
> > return False
>
> The next part of the code returns FALSE in both cases:
>
>
>
> > #Check to make sure it is increasing along the rows
> > for row in t:
> > for i in range(1, len(row)):
> > if row[i] != None and row[i] <= row[i-1]:
> > return False
>
> > #Check to make sure it is increasing along the columns
> > conj = t.conjugate()
> > for row in conj:
> > for i in range(1, len(row)):
> > if row[i] != None and row[i] <= row[i-1]:
> > return False
>
> > return True
>
> > If it is, could you try going through and running that code "by hand"
> > to see where exactly it is returning False?
>
> Checked with:
>
>
Hello,
>
> >> sage: Ribbon([[2,3],[1,4,5]]).is_standard()
> >> False
>
> >> sage: SkewTableau([[None, 2], [1, 3]]).is_standard()
> >> False
>
I got the exact same two doctest failures with Fedora Core 7 on PPC 32
Linux. Everything else passes.
> I hope this helps,
>
> Jaap
Cheers,
Michael
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