Shellability of Exponential Structures
نویسنده
چکیده
We show that the poset of aB partitions of an nd-set with block size divisible by d is shellable. Using similar techniques, it also follows that various other examples of exponential structures cited by Stanley are also shellable. The method used involves the notion of recursive atom orderings introduced by Bjorner and Wachs. AMS (MOS) subject classifications (1984). Primary: 06AlO; secondary: 05A17.
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تاریخ انتشار 2004