Suppose f is the flagfPolynomial of P. The flag-h polynomial of P is the polynomial (1-q0)…(1-qr)f(q0/(1-q0), ..., qr/(1-qr)).
i1 : flaghPolynomial booleanLattice 3 o1 = q q + 2q + 2q + 1 1 2 1 2 o1 : ZZ[q , q , q , q ] 0 1 2 3 |
The flag-h polynomial of the n chain is 1.
i2 : flaghPolynomial chain 5 o2 = 1 o2 : ZZ[q , q , q , q , q ] 0 1 2 3 4 |