We use the theory of symmetric functions to enumerate various
classes of alternating permutations w of {1,2,...n}. These classes include
the following:
(1) Both w and w-1 are alternating.
(2) w has certain special shapes, such as (m|-1,m-|2,...,1}...
We use the theory of symmetric functions to enumerate various
classes of alternating permutations w of {1,2,...n}. These classes include
the following:
(1) Both w and w-1 are alternating.
(2) w has certain special shapes, such as (m|-1,m-|2,...,1}, under the RSK algorithm.
(3) w has a specied cycle type.
(4) w has a specied number of xed points.
(5) w is an alternating permutation of a multiset