to appear in Israel J. Math.
Dominique Foata, Guo-Niu Han
SIGNED WORDS AND PERMUTATIONS, IV;
FIXED AND PIXED POINTS
The flag-major index ``fmaj" and the classical length function
``l" are used to construct two q-analogs of the
generating polynomial for the hyperoctahedral group B(n)
by number of positive and negative fixed points (resp. pixed
points). Specializations of those q-analogs are also
derived dealing with signed derangements and desarrangements,
as well as several classical results that were previously proved
for the symmetric group.
foata at math dot u-strasbg dot fr,
guoniu at math dot u-strasbg dot fr
The following versions are available: