TY  - JOUR
AB  - Based on the evaluation at t = −1 of the generating polynomial for the hyperoctahedral group by the number of descents, an observation recently made by Hirzebruch, a new q-secant number is derived by working with the Chow-Gessel q-polynomial involving the flag major index. Using the doubloon combinatorial model we show that this new q-secant number is a polynomial with positive integral coefficients, a property apparently hard to prove by analytical methods.
AU  - Foata, Dominique
AU  - Foata, D.
AU  - Han, Guo-Niu
AU  - Han, Guoniu
DA  - 2010
LA  - eng
IS  - Münster Journal of Mathematics
M2  - 89
PY  - 2010
SP  - 89-110
T2  - Münster Journal of Mathematics
TI  - Doubloons and q-secant numbers
UR  - https://nbn-resolving.org/urn:nbn:de:hbz:6-16409480239
Y2  - 2024-10-25T13:26:48
ER  -