George E. Andrews, Frank G. Garvan and Jie Liang;
Self-conjugate vector partitions and the parity of the spt-function,
preprint.
Abstract:
Let spt(n) denote the total number of appearances of the smallest parts in
all the partitions of n. Recently, we found
new combinatorial interpretations of congruences for the spt-function
modulo 5 and 7.
These interpretations were in terms of a restricted set of weighted
vector partitions which we call S-partitions.
We prove that
the number of self-conjugate S-partitions, counted with a certain weight,
is related to the
coefficients of a certain mock theta function studied by the first author,
Dyson and Hickerson. As a result we obtain an elementary q-series proof of
Ono and Folsom's results for the parity of spt(n).
A number of related generating function identities are also obtained.
The url of this page is http://qseries.org/fgarvan/abstracts/spt-parity.html.
Created by
F.G. Garvan
(fgarvan@ufl.edu) on
Tuesday, January 10, 2012.
Last update made Tue Jan 10 09:29:12 EST 2012.
fgarvan@ufl.edu
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