|
|
A171737
|
|
Number of new extreme inequalities for the flag f-vectors of graded posets of rank n that do not come from those of lower ranks.
|
|
0
|
|
|
|
OFFSET
|
1,5
|
|
COMMENTS
|
The extremes represent the strongest linear inequalities holding for the flag f-vectors of graded posets of these ranks. The flag f-vector counts all chains having prescribed rank sets.
|
|
LINKS
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,more
|
|
AUTHOR
|
Louis J. Billera (billera(AT)cornell.edu), Oct 06 2010
|
|
STATUS
|
approved
|
|
|
|