Skip to content

SecondToLastInjectiveProjectiveDimension on DyckPath ​

The projective dimension of the indecomposable injective module whose socle is the second-to-last simple module.

On DyckPath

FindStat's St001217, I[n-2] with the simples numbered 0 to n-1.

Called as CombinatorialStat(x, "SecondToLastInjectiveProjectiveDimension"). The head's page has its examples.

Live

Distribution

Over DyckPaths at each size, tallied here in your browser; sizes past 10 are not offered.

FindStat St001217

The projective dimension of the indecomposable injective module I[n-2] in the corresponding Nakayama algebra with simples enumerated from 0 to n-1.

ObjectValue
[1,0]1
[1,0,1,0]0
[1,1,0,0]1
[1,0,1,0,1,0]0
[1,0,1,1,0,0]0
[1,1,0,0,1,0]1
[1,1,0,1,0,0]0
[1,1,1,0,0,0]1

Data from FindStat, the combinatorial statistic finder; the page at findstat.org/St001217 has the rest.